Jason,
I started to write a response to your comments, but soon realized it was of little value. The bottom line is your assumptions and mine are totally different. The fact is there is no "body rule' or any rules for that matter, for the pan class in Toledo. In the MidWest Series there are only references to allowing the racers to make them up. So any body is fine.
What the discussion here is about is a struggle that has been going on from day one about making the class unique and different appearing on the track by using bodies different than those used on the 4wd cars. We started with Motonica Sedan/GT bodies and when someone tried the modern body,that was the end of the GT. Many of us have '70's vintage bodies we got on the internet for $15 (re-pop, not NOS) and planned to use them.
It may help you to know that this is a small group. To compare it with how things are done in Europe is not reasonable. Last year, a total of 13 people ran in the class, 3 raced once, 4 more raced in 5 or less of the 10 races. As far as in the Midwest Series their may have been 2 or 3 entries from outside this group all season.