The elctrical may be custom. Looks like an onboard starter system. The electric motor looks to be powered through the transistor that is mounted below the engine. Chassis looks kind of like a kyosho, but I don't think it is an assault. got to love the sand scorcher / grass hopper rear tires. Look like they are in good shape too!! Very interesting buggy for sure.
Brushes? We don't need no stinking brushes!!!
I just aquired one, and it does come with an aluminum roll cage. The one I have is broken and I think missing a piece. If this link is still valid, let me know. I will post some picture's. It is a Playtron, Inc. Made in Japan. The engine is so darn light! It has an electric starter I believe. Mine doesn't have a manual either.