Two quick things I have now found out setting a PVC enclosure up that I have to share.
1) Since I assume you all are Reptile Prime converts by now... don't add any moisture at all to the substrate. Put it in dry. Sweet mother of humidity the first day!
2) Hot glue does nothing (could be because I would/did not score the pvc finish to get glue to stick). It is like a post it note against PVC. You need to either silicone things in or epoxy/superglue them in. Hot glue comes loose and just does not work. Don't bother. Just remember when using any adhesive... less is more
Oh yeah, bonus lesson learned. Your snake will find every cable and swing on it like a monkey. Secure it down well and then secure it down some more.