One of my friends owns two large constrictors, a 7 ft Granite Burm as well as a 6.5 ft Albino Retic. He asked me what's a good large cage for them when they eventually grow out their current caging. (Their cages right now are homemade 5 and a half ft long, three ft. tall, and a couple of feet in width, not too sure the amount) I've looked into it last night, and found AP makes some (T70 8ft L, 3 ft D, 2 ft H) and was wondering what's some other good cages? Input would be greatly appreciated! Thanks!