Bob,
we used to do a bunch of restorations, espescially on Porsche, Ferrari and Kit cars. The restoratrions and retrofits get pretty expensive, so we started working on new products with the feel of the old stuff. We can re-do your dials, no problem.
As for the 35s fitting in the hole on your 36, most guys are enlarging the two openings, which is still about $1500-$2000 less than a retrofit set.

Mark