Regarding Battleship Linoleum, and, any linoleum sold in most of the USA:

Only "thin" linoleum is normally sold in the USA, including the linoleum sold by "Battleship Linoleum".
Thicker, original gauge, linoleum used in/over the Suburban's rear-floor/rear-plywood is often/sometimes available in Canada (and is mostly manufactured in Scotland).

You can, of course use the thinner linoleum, but, a purist might want to "router" the original grooves in it.

If I am incorrect (out of date) with this statement/information, please let us know your source of the appropriate thickness of black/brown linoleum?
Thanks

Also, if anyone sets up a "jig" for routing the linoleum, and you are willing to do this for other members (at a price, of course), feel free to post that information here (it is within "forum rules", because you would be listing a service available more than once).
Thanks