Just a quick observation: I see you painted the chassis and roll bar blue, they are now black. Strange... And some other rear wheels and tires came with it. Someone must have taken it apart, there's a lot of parts missing! Maybe swapped the chassis... I have a Miss Deal kit that I can borrow parts from, to get it looking right again. I'm thinking of making a new firewall, 'cus the kit piece is weird, doesn't fit. It's like Revell had something else in mind with this kit. I will also do something about the headers, so they exit at that opening in the body.
I haven't asked the seller here in Sweden where he got it, but I would think he found it on ebay. I'll check with him.
Updates will follow.