Thats the size I was thinking of going with. I like the idea of sliding doors, but I'd rather have acrylic doors because I'm clumsy. Should I order locks with them or do they have a pretty secure latching feature with out getting locks? where would the ideal placement of the thermostat be for a radiant heat panel? Like would the probe dangle mid air? Do radiant heat panels just raise the temperature by a few degrees? temperatures in our house fluctuate a lot. We have a room ac so when we sleep the temperature is about 68 degrees, but when we aren't sleeping the room can get as warm as 80 (his cage is in our bedroom) Also, do these cages have spots to run thermostat and thermometer/hygrometer probes?