chuxta, you have any experience moving trees that size?

I moved an ash about 1/2 that size and shocked it plenty by not getting all that many roots.

I have never moved a tree this size.

I would not attempt to move a tree that size myself. Not to say it can't be done, but it would be a major job.

I would probably try to remove the lower limbs, a few each year, to maintain a higher canopy, but it's hard to say what would work best.

Maybe try asking in the landscaping forum, since this is really more of a landscaping problem than a specific issue about maples.

i would remove arborvitaes and replant new ones along fence....and limb up maple a little

By no means an expert here, but i agree with dredawg re the arborvitaes. To me they appear too large for their position above the brick wall. Also I don't think trying to limb the jm up enough to be a canopy for the arborvitaes would work.

When you replace the arbor, could you modify the design so that the jm doesn't encroach into the frame? I can't tell from the pics, but maybe it would look fine for the jm to extend into the patio area (if it's not interfering with the table and chairs) if the arbor frame wasn't there to emphasize the issue. You can do some pruning to control branches extending out further than desired. But I would visualize the ultimate allowable width of the jm with its expected height and see if that works aesthetically.

Goodness. Yank the arborvitaes...leave the maple. Prune the maple up a bit...if you want to replace the arborvitae with something else for screening...let me think about that. How about a few trellises and some clematis armandii? CA is fast growing and evergreen...and won't crowd the bloodgood.

Arborvitaes are a dime a dozen. A bloodgood that size is worth some money. If you MUST move it...wait until fall.