That thing appears to be in immaculate condition. Be sure you ID it before selling. You'd be suprised how much some screwy collectors are willing to pay for older rare RC's in that kind of condition. And the only 2 welds that I can make out in those pics, look fine to me. If I were you I wouldn't touch it at all until you ID it. It MAY be worth more money than its fun value will give you. If you doubt me just watch ebay and see the relatively high prices people are willing to pay for some of the old rarer tamiya electrics. I saw a NIB frog kit go for over $300 once. Of course that was a NIB, but some of these collectors are oddballs and willing to pay silly prices to get a peice or even parts car to help complete a product line collection.

I agree that you should post in the buggy section. That thing looks manufactured and I'm sure one of the oldtimers will recognize it.