Not sure if the manufacturer can help, but they might have some insight.Vinyl, and plastics in general, just aren't very reactive.

The amount of surgery required just to convert them is pretty extensive, and in most cases for garage conversions like this, we recommend tearing down and rebuilding in the same footprint anyways.

Dishwasher stopped working, he says, but when I get there I realize he somehow managed to rip the front pull handle and control board off the machine and broke the plastic. 

Plastic covering???

It's not a secret, there are tons of people looking for mentors, you really don't have to put a yellow plastic sign on the side of the freeway to find them.  

Spray on an enzymatic neutralizer of your choice (I use natures miracle just make sure it says enzymatic on it), lay plastic down so it soaks into the floor completely and doesn’t just evaporate, then you’re looking at some serious ozonation time.

Does it have a small kitchen, in a flood zone, septic system, plastic CPCV plumbing, tree growing through gas line, modular home, foundation repair, auction listing, property code violations, past due taxes, murder or method house history, pit bull next door, corner house, finished and leaking basement?

I wouldn't put LVP or any plastic floors in even my dog house.

He is 86 and needs to return to the states for surgery.

Between the deficit of plastics coming out of Texas, a decrease in supply from the lumber industry as ppl got laid of during the pandemic, rise in shipping cost, and on top of that.... an increase in remodels from those putting their stimulus checks to work for them.