Steve, first let me compliment you on your build, it looks really good. Would you mind telling me what parts and pieces you used from each of the kits you mentioned? I had a 1990 Formula that I'd like to reproduce. Looking at the three kits you mentioned (on ebay), I see the '85 TA would supply the rear spoiler and the '92 the wheels and the body. I can't see what the '91 would supply though. Finally, where did you get the front bumper? Modify the '85 perhaps? Thanks for any info you can provide.