Regaurdless of who the instructor is if they arent willing to put their personal dislikes aside and help me learn whatever system I'm using to become a better and safer diver to the best of thier abilities then I think I would do my best to stay away from them, I shouldnt (and wont) be forced to buy something I might not like and that might not work for me just to recieve instruction. Different systems work better for different people and we sure as hell arnt cookie cutter copies of each other....If I "Instructor" cant realise that then they arnt worth a d*mn to me. And Yes I would prefer to take the SM back near my home town (Ocala) as I believe that a cave instructor that teaches SM would try to give the best training they can, but at the same time I still have to be able to afford it.
Well the Razor is pretty expensive.
Sidemount is very person specific and I think you might be hard pressed to find a serious (cave) instructor in FL diving a Razor with steel tanks. Its just not an optimal setup for that. If you want a Razor, buy a Razor. But I think you'd be better off finding an instructor doing the dives you aspire to do and taking their advice on which SM rig to do those in. They will probably have several rigs, likely heavily modified, you can demo too.
Right now you are perfectly poised to spend a whole lot of money ahead of time, only to learn in class that a different system works better for the diving you want to be doing.