Japco RX3 fiberglass?
 

Found this link when looking for RX3 fiberglass:
http://www.piner.com/japco/

Unfortunately the RX3 example picture link didn't work.

Has anyone seen or heard of Japco?

Hmm I wonder if this person was at one time associated with Roger Mandaville and any of the other Old School racers, the first gen kit looks very much like the factory IMSA Kit

Rick who owns Japco is a good guy. I believe he has cancer and I doubt he is doing fiberglass anymore.

that sucks...

IIRC he had OE type fenders, hood and door skins... possibly a trunk lid as well as old school GT style flares for the RX3

I bought a hood and nose for my rx-3 from japco a few years ago. The hood was trimmed way too much after it came out of the molds and left a gap of almost an inch on each side. Basically it was too small. The nose was pretty cool, i had it made solid with no cut out for the radiator for my drag car. I ended up not using the pieces and sold them because of how the gaps looked. If you order any parts see if they can be left a little big so you can trim them yourself and get the gaps right. The quality of the fiberglass was good and they were lightweight.