Go Westy sells some of that interior beige vinyl covering.  They also
sell an adhesive for it.  An alternative, remove whatever is peeling and
take a sample in to a paint store where they can match it up and paint
the panels.  I've done this in a few areas and no one can tell the
difference...except some purists.  Frank Condelli has also just left the
old glue in place and painted over it and he says it looks like OE.  I
took the glue off mine (PITA), then painted the panels so they kind of
matched the cabinets now.  

Pascal 
'84 Westy