If I were ever to build one from scratch, I'd want to cover it with whatever coating that Peavey put on their old PA cabs. It reminded me of sprayed on bed liner.
I thought about that too. It's not like mine is going on the road. Maybe a nice "furniture" grade would be cool in my little studio. Assuming I could pull that off.
the one i did for the 5e7 with 1x10/1x12 was gigged pretty heavy and it shows the wear for sure but when they arent banged around much, they look great