if you have a wall you could fill up with cages...id just make them out of wood and screen. you could even make slits for dividers so you could make the cages larger by taking out the divider. i think itd be cool and cheaper.. just my opinion.
what a wanker. if you havent responded to him again you should tell him youll send a check or something and you need to know who to make it out to.. or something like that.
I free range one of my chams 24/7 and all i have is a fake ficus in the corner with vines that go from wall to wall with my lights pointing at them and he has only shown interest in leaving twice...and once was just to get into the cricket bin (unsuccessfully)
if you have a window or...
if the hood itself is 24 inches then the bulb holder could be at 18 inches.. if it holds a 24 inch bulb though youll need a 24 in bulb.. if you have an 18 inch bulb already and no fixture, id just pick one up at walmart (they are like 7 dollars)