Where to get rubber flooring material

[olds88]

I have tried unsucessfully to buy the original flooring material for my 1956 Olds 88 4door post. One company (in Washington state) said they had it but then sent something else. So now I have decided I can perhaps make it myself if I could get the material. I know I could get the carpet but I wanted to put it back to original which is the rubber matting. Any ideas on where to get this material? The front needs replaced because the heater core leaked on it and the drivers side is chewed up from wear. The back floors look pretty good except for water stains. Any ideas on restoration. I was thinking of painting it with some sort of elastic paint but wasnt sure what might work. Thanks:)