Rio Red for Toni!
Toni, here's my Rio Red grapefruit, the large bushy one in the center. To the left are the Bloomsweet (far left, that's the one that just got moved, and it's really stressed) and Ujukitsu, which is a cross between an orange and a lemon, and is very sweet. You can see the red tags still on the trunks. All 3 were planted at the same time, and were about the same size. You can see how enormous the RR has gotten, compared to the other two, and if you look carefully, you can see some grapefruit on it. I think it has about 15 left. All 3 are regular grapefruit size, though the Ujukitsu is a little smaller. You can probably get the Rio Red in grocery stores right now.
I wish you could grow citrus, Toni! They're very rewarding, and are very pest-free (except for Asian Leaf Miners), and birds, squirrels, possums, etc. leave them alone. So the citrus that are high up in tall trees will stay there until they fall off.
Could you grow the FD as a potted plant and bring indoors for winter? You can cook with citrus leaves, did you know that? Add them to soups, casseroles, stir-fries, wherever you would want some mild citrus flavor. Use them like bay leaves. And growing citrus from seed is iffy. Some will breed true, others won't, since they're all complex hybrids, so you don't know what you're going to get after a long, long wait.
Here's a link to a local nursery's citrus page, there's a lot of good info there.
Here is a link that might be useful: Buchanan's Native Plants