You can use some of the Impact, not 835, parts on your Colt 10. Things like the suspension arms, shocks, etc., were compatible with the OFNA car (had a guy here in Dallas running one for a while; had more Serpent than OFNA parts on it). Some of the Impact parts are still floating around but you will have to look for them. Hope this helps.
It's not what you know; it's what you can prove.
The only thing that is for sure is that nothing is for sure!!!
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There are 2 things in life that are infinite: the universe and stupidity.