Sounds like a plan, the interior can wait a bit anyway. The main focus is getting the replicated outside.



The sand trick seems like a good idea to keep it from buckling instead of bending .
It might be good to connect a ratchet strap between the top of the snorkel and the light bar and apply gentle persuasion with it as you go. Heat for a while, then go 1 click tighter on the strap. Heat again... Another click, etc.
That way you'd have both hands free to work the heat.
Good luck!
-G


