I don't think the length of the cage matters as much as the height, you don't really want anything shorter than 24" for an adult female. you can get away with 20" (maybe an inch or 2 less) for a male. but most adults get larger than males you want her to have some room.
OK. I think I'm going to order one from PVC Cages. 36 X 24 X 24 Complete with heater, light & thermostat. Everything but perches. If I get another GTP, I'll get the 24X24X24 and use the smaller one for the male.

For my other enclosures i just use a closet hangers ($2 bucks at walmart or home depot) and cut my own PVC to fit whatever size enclosure I am using them for. I personally did not order perches with my PVC cages because I don't like the way he does his--sometimes they are very difficult to take on and off and when you have a pissy animal I don't like to be fighting with the perch. I like an easy on/off perch...plus I like to switch up sizes depending on how the animal is growing.
I like the idea of using closet hangers. Not because they are cheaper, but because of their ease of removal.
Do I need to worry about the dowel being loose in the hanger? Can I use a sterile tree branch instead?

Thanks to EVERYONE for their help!


Andy-