Thought I'd share this cage I came across. Expensive but roomy and 1/2" bar spacing.
My First Home Multi Level Home for Exotics - 30 in. x 18 in.
It can also be found on Amazon, but Amazon's dimensions are messed up as usual. The first link says the cage is 30.5"L x 18"W x 30" high. That's 549 sq. in. floor space. Not sure how durable the plastic is though, but thought I'd share.