Re: Non wood interior sole alternative
"Linoleum" is the wrong term being used. Sheet vinyl, specifically fiberglass backed sheet (ie "FLexitec, Tarkett Fiberfloor, Armstrong cushionstep) id the product to look at. It can be installed with two sided tape if you like and is a simple DIY cut in. Hatches can be trimmed for access.
Real lino will be pricey and start to smell real musty real quick I am afraid
(yes I am in the flooring business...LOL)