Well it's been 5 days and not a single reply.
I've gotta ask...
That's quite a collection and a large investment. Why is it "inapplicable & irrelevant" that you do not have suitable conditions to grow them?

And how did a tornado wipe out the shade but not wipe out the collection?!

Even though full sun in Maryland is not ideal, it is different than full sun and much longer growing season of Florida. You may have had a couple months of high temps in the 90's but don't forget your low temps were probably in the 60's or on rare occasions, low 70's. The Florida, the temps remain very warm at night, in the 80's and upper 70's and it doesn't cool down as quickly as it does farther to the north. Florida also has long droughty periods that put all plants to the test, especially those that are not well adapted to that climate in the first place. The midatlantic is a muggy place but it pales in comparison to peninsular florida. Coupled with the aforementioned stresses/ cultivation challenges, the conditions are ripe for diseases.

So I think that's the reason you haven't received replies.
That said, I do think you can grow what you've got if you erect a shade house with good circulation. If not, expect leaf scorch.

I live in the Gainesville, FL area and while I can't really speak for how big these guys will ultimately get I can comment on the ones that have handled sun from 7am-3pm or more in some cases. Good watering really makes a crucial difference in this heat. Here are some that have been good for me through one of the hottest summers in recent memory in North Florida and ranked from most sun to less:
Acer palmatum E.P.
Acer palmatum Summer Gold
Acer palmatum Seiryu
Acer palmatum Glowing Embers
Acer shirasawanum Jordan
Acer palmatum Emperor 1
Acer palmatum Heffner's Red Select
Acer palmatum Red Dragon
Acer palmatum Fireglow
Acer palmatum Shishigashira
Acer palmatum Kamagata
Acer palmatum Everred
Acer palmatum Sango kaku
Acer palmatum Tana
Acer palmatum Osakazuki
Acer palmatum Tamukeyama
Acer palmatum Orangeola
Acer palmatum Lionheart

There are more that get quite a bit of sun but these are the ones that have really impressed me. I am very very impressed with the Acer palmatum E.P. I really can't believe what a tough maple it is. Again I have no idea of the ultimate size and I know you want that info, but hopefully this will be of some help.

It never fails...
A topic can be sitting there for days or weeks, growing mold.
But once I reply to it, then the replies come in.

Well.
"Irrelevent and inapplicable" is to my question. I know what JMs should have so I don't need the instruction. However, the sun exposure is that it is here and will remain so until some of these trees mature enough to provide shade for themselves.

Tornado: I didn't say I didn't lose JMs. The 1st tornado in 2008 took out 2 of my huge, shade maples and a 6o' pine broke in half landing on my pot bed, destroying 30(?) or so of my babies. This spring I had another tornade which took out two more shade-providing maples, but I only lost a sweet "J.J. Firered" and "Japanese Sunset" to the tree tops landing on them. I've also found hellebore, heuchera and many, many hosta are sun tolerant despite dire warnings to the contrary.

Due to other circumstances and long story, building a shade structure is not possible. I'd love a sun sail, but again, not in the remotely near future.

Ishboz, you've caught the gist of my question. Size would be nice, but daytime exposure is perfect. I have everything you've listed except "Jordan" and "E.P." I can add a ton more that would probably thrive in your area's sun, including:
Atrolineare
Maiku Jaku
Octopus
Boskoop Glory
Berrima Bridge
Nicholonii
Chantilly Lace
Japanese Sunrise
Seriyu
Otaki
Kinran
Butterfly (yup.)
Trompenburg
Baldsmith
I'll stop now. :)

This is a help. I've been searching for nurseries in the area where they say the varieties offered will tolerate full sun. If they can take it down there, they can take it here. Particularly if the nightime temps are such a variable.

I'll keep looking. If you get it in your noggin to note any others you have in full sun, I'm interested.

Thank you!

Great list of maples! I plan to add several of those cultivars in the spring, Boskoop Glory and Japanese Sunrise for sure. A restaurant nearby has several japanese maples that are over 15' tall and get lots of sun. They aren't tagged and nobody knows the cultivar but it looks like Glowing Embers to me, but I am not an expert by any means. Jacksonville zoo has a Japanese garden and their maples on display included Shirazz and Shaina. Just some more info on cultivars in the heat down here :)

It sounds like you've got more of a tornado problem than a sun problem!

If you set up irrigation and can live with less than perfect foliage, I think you're in business. Until the next tornado that is. Then all bets are off.

After the 2nd tornado, I would have high tailed it outta there. You're brave.

Good luck. Batten down the hatches.

I didn't mention the 1st year I started collecting, my dogs ran thru my little bed and snapped them all off.

The 2nd year, rabbits bit off every darned one of them right at the graft.

I have had the same luck with compost piles. A farmer plowed one, my DH put a car on the next, blah blah.

I grew up in the midwest. What's a tornado or two?

Ishboz, I'll look up the Jacksonville zoo to see if they talk about their gardens. Often, when emailed, the arborist or head honcho is very happy to talk about their pride and joy.

I appreciate it!
Good luck with yours and thanks for your list. :)
Christine