Picking up this TV cabinet on Wednesday for $50 I'm going to make it into a 3 bay enclosure. The sides for my black and gold jungle and my maccie, and the middle for my coastal. I will use the hole saw to cut a holes between the top and the bottom cupboards and drawers, which will act as hides. I will hang these ceramic fittings, one in each bay in cages for heating, all hooked up to thermostats. I will get runners and glass cut by a glazier to fit the middle bay. Latches and locks will be put on everything. I have a couple of questions. Do I need to paint it with sealant, or will the existing varnish be safe? I plan on using silicon to fill any gaps. What do you guys think of my heating setup? These ceramic fitting are $9.20 each and the cages for them are $20 each. I was thinking of using screw in cable tidy plates to secure the cable to the roof and let the fitting hang down. Will this be safe or is there a better way? Any other ideas are appreciated.