Without going into enormous detail... (I'm not in a typing mood right now)... I'd build something like Dino from White Diamond Reptiles has in his basement. I'd have a clean and bright 10' x 15' room. I'd have it all super organized with baby racks on one wall, sub-adults on another wally, and adults on another wall. All the racks would look identical cuz I have OCD and need everything to be clean, organized and look uniform. I'd have a big refrigerator incubator. Everything would be run of Herpstats. And I would only have Ball Pythons in there except for what's in the next paragraph...
I have this awesome dream to turn a one of those fiber glass shower stall enclosures into a huge elaborate GTP or Emerald Tree Boa enclosure! It would be freakin' awesome! You can mount all different PVC pipes for perches. Seal the top off with a Plexiglas lid type dealio. Heating (I think) would be pretty easy. Humidity would be pretty easy. I'd make some cool automatic rain-like systems which would probably be fairly easy since I'd be building it into the shower. And then I'd paint and decorate greens and tans to look natural. And I'd put an extra heavy duty drain to flush anything big down. I think it'd be a pretty sweet display for the snake/ball python room...
Oh and I'd have a separate room for the feeder breedings!