I didn't have the money to take advantage of getting
any of these

Your enclosure would be fine for 3 or 4 though.
I have my pair in a 12x18x24 and I think i will eventually throw one or two more females in there.
Have you found that the spectrum are more arboreal? Lot's of foliage and branches to the top of the enclosure seems to make them feel more comfortable.
-Brad