I have noticed a little biase, there are other kits out there, also ebay seems to have one or to incomplete kits, as below most of the time
AC Cobra DRB KIT | eBay
my best suggestion is to go to a club event and compare them, shelbyfest was a great eye opener for me and you could see all the kits side by side, and all of them are drivers, all the members are more than happy to share information.
just my 2 cents.