How much riding experience do you have? I know of an older very sweet Tb in the Grant Florida (east coast south of Orlando) area with quite a bit of suspension in his gaits, dressage experience (movements no show experience I believe) to around second level.
I don't own horse but know owner did have him listed for sale at one time.
Horse is totally out of shape since owner doesn't have time for him. Owner also stated that rider can't just"kick" him since he did race (I think) on the track. I don't own him but have ridden him, as has a student of mine. Neither of us had issues with our use of legs on him, but owner wants a good partner for the horse and is being selective.
Also, neither of us is looking to buy but student needs a horse to ride this summer til she goes back to college, so has ridden him at least once, maybe more. She really liked the horse and horse has talent (16 hands) but is "stiff" due to not being ridden, just turned out. Price is VERY good for a horse who knows some more advanced dressage movements, including changes.
Dressage is for Trainers!