-Not! Just bone up and buy Toyos too.
Whinge whinge whinge...
Toyos usually cost less per hour on track, and used wheels can be had for $50 each. That's what... cheaper and then a $200 one time investment? When the average SM racer spends what... more than $1000 per race weekend counting everything?
If you run 5 nasa weekends, that's $40 more per weekend that first year to pay off the wheels.
Starting from a blank slate, I would pick a single car and kick all the other cars out. Whatever has the most donors that are viable.
Chumpcar and Lemons are kind of a false economy. You'd have better luck in the long run just building a real enduro car. Pretty much the same cost and a lot less effort. If I went back into crap-can racing, I would shamelessly cheat like crazy for reliability, not performance.