If anyone's interested, here's what i did.
I took the pedal off my street/AXcar and put it in the Track Rat. Bon.
Along the way i made an exterior and drilling template.
I went to the local Hardware store, and found a piece of scrap plexiglass ~ 3/8", that was sufficiently flexible that it will be tough, rather than strong and brittle (or so i guess).
used my angle grinder to make a pedal overlay about 5/8" larger than the pedal, all to the left. Drilled per template and installed with self-tapping screws. I may replace the two upper ones with bolts, washers and nuts.
No conclusion on how it works until i drive it a bit more, and at least once "in anger" which will be tomorrow at the NNJR-PCA Autocross. Considering how little pressure a gas pedal requires, and how little it extends unsupported, i don't see any issue.
Another option that i am told the Weissach guys do all the time is take an old pedal, cut it off the assembly, and place it directly on the existing one, changing the plane.
Cost: $0.35
Grant
Grant
gee-lenahan-at-gee-mail-dot-com