Remove interior --> Destroy interior

[BiggSixx1970]

Hey guys! Got a question about my interior/flooring


I eventually plan on carpeting and insulating my interior the correct way but I need a budget fix for now that looks half way decent.

I had to pull my flooring out to get to the top of my transmission to address a binding shift fork, Little did I realize the original rubber floor mat was soft as Velveeta Cheese, I would attempt to peel it back and it would just tear, needless to say I pretty much destroyed it trying to get it out.

I didn't know the horror that lurked beneath..
drivers side

passenger side


Does anyone know of a website that sells replacement rubber flooring for cheap? I am creative and good with my hands, is there anything that I could use for insulation? I'm looking for DIY style input, not just ordering replacment floors, insulation, and dynamat.. Should I check craigslist and scrap yards?

Thanks guys! Appreciate it!