Since Scott is RIP, I won't expect to see it from him. I would also not be surprised to see the molds magically appear and be reissued now that he can no longer be a hindrance to the kit being reissued.
I asked Mike Sullivan several years ago about info on the blue and white Fiat. He told me at the time he didn't have any pictures or know of any chassis shots. Even the Steve Reyes feature of it in DRUSA is very lacking of chassis details. The linked restoration pics are great but are not the original chassis. Unfortunately the hard drive I'd stored every thing on crashed so like most of my research materials, they're gone.
I need to build a Kyle Petty car or buy an exceptional diecast. I've got several of the Kyle Petty AMT cars and just haven't considered them. I'll need to change that. Nice build showing the possibilities of this kit.
I think the Gundam builders aren't into contest put on by "traditional" modelers. Also, most Gundams I see are pretty much factory stock and might not be deemed contest worthy by the builders.