RE: Kyosho Vanning
I remember that from the mid 1980s, and wanted it real bad back then. It had an insane price tag attached to it and that's mainly why I didn't get it. But now, forget it. There's zero parts support for it, and if you look at the chain drive system and the chain itself, you'll exactly why.
It would be a great collectable if you like Kyosho, so I'd suggest that you keep it, build the rest of it, and then immediately shelf queen it and never run it, IMHO.
Otherwise try and find a 1984 Tower Hobbies catalog and look up the price, and post it on eBay with a buy-it now for what you found it sold for.