For larger lizards, yes. For a snake, no. I think it would be done but there are ways to join acrylic and/or plywood that would not require the weight and complexity that would come with a PVC pipe frame, not to mention the security issues.
If you're really stuck on this idea, I would use square PVC tubing and then use rivets and PVC solvent to attach Sintra to the frame.
If you google [cat cage square PVC tubing] you should get a link.
I have it saved somewhere but don't have the time to look it up.
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Current snakes:
0.0.1 Gonyosoma oxycephala - Java locale (green)
1.2 Gonyosoma oxycephala - Jave local (green)
2.2 Gonyosoma janseni - Seleyar locale (all black)
1.2 Gonyosoma janseni - Celebes locale (Black & Tan)