Ply line, carpeting and flooring inside a camper van

Ply line

Buy the ply from anywhere and pop holes in the ply to drag the wires through

 

Carpeting/lining

I’d use 4 way stretch carpeting, limited on colours but there’s lots and lots of people selling on eBay

I used this guy, the stuff turns up on time etc

 

And use trim spray - a 1 x 500ml tin of high temp adhesive / heat resistant glue should do 2 M2 of lining and this guy sells a pack of lining + glue in one order

Flooring

I used fairy standard flooring that you'd find in your kitchen at home, best fitted before the carpet but can be done afterwards