I say keep shopping. Just take the time to look around more.
I just ordered a 4'x2'x1' boaphile cage for only $266 delivered. I had a 5 cage stack pack already, but my thermostat had 6 outlets. So I didn't want waste the 6th outlet and ordered a 6th cage. I added three options(1.5 heat, 3 black hinges instead of 2 galvanized, and a center lock) to the cage for a total of $57 and still it was only $266 shipped to my door. No assembly required! All inside edges are caulked by The Boaphile.
Web search boaphile plastics. Proline cages are nice also(constrictors northwest).
My boaphiles all stacked.
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