Thanks for the input. My factory panels are really in good shape, but the vinyl was pretty sunfaded and cracking in a few places where the elbows rest. At this point I'll be happier with the fit of restored originals than with the ease of buying another set of repros and hoping they fit.
My concern with using an expanding foam is that I'm really only trying to fill in very small lows in the foam (.5mm-1.5mm). I just don't need that much to fill them in. I wish there was something in a spray can, like a high-build primer, but for soft touch surfaces.
Now I'm thinking some kind of tape or padded tape could be applied in those areas to ensure that the vinyl/leather does not show any of the lows in the foam. I know some vinyl's have a thicker backing so that it smooths out imperfections, so hopefully that, in conjunction with the tape, will smooth out the lows without creating new bumps or creases.
If I'm overthinking this, feel free to hint in that direction
