I'm in Florida as well. I have a dedicated reptile room to which I use ambient temps for my bp's.
Mine is a wine chiller also, that I had in my garage taking up space. Since I heat my reptile room, I used the VE300 t-stat that was controlling hot spots, and some unused heat tape. The only thing I ended up buying was extra thermostats. I may take apart a pc I no longer use and add the fan from it to circulate the air...
Edit: since it had wire "shelves" I found some hard plastic cutting boards on clearance, cut them down to size, drilled some holes for the air/heat to pass, and those are my shelves now.