It looks like you are already aware of and are giving careful thought to the heavy guns in the area of Florida you mentioned.
But since you brought up "UF-Gainesville" in your original post, I will just mention that I had a very good experience getting IMRT at the North Florida Regional Cancer Center in Gainesville.
No, this is not Shands Hospital in Gainesville, which is affiliated with the University of Florida and is likely better known, but I did find my treatment at the NFRC Center in Gainesville to be very well done, professional and efficient. And very successful for me.
Below is a link if you want to take a look at them. Maybe the NFRC Center wouldn't be your first choice, but perhaps it's helpful to at least know it exists in the area of your interest, just in case, and it does seem like a pretty good place, at least based upon the experience I had there./cancergainesville.com/home/
Chronic prostatitis (age 60 on)
BPH w/ urinary obstruction, 6/2011
Ongoing high PSA, 7/2011-12/2011
Biopsy, 12/2011: positive 3/12 (90%, 70%, 5%)
Gleason 6(3+3), T1c
No mets, PCa likely still organ contained
IMRT w/ HT (Lupron), 4/2012-6/2012
PSAs (since post-IMRT): 0.1 or lower