[Bailey]

Robert, It's pretty simple stuff. These cars are essentially go carts with lights. No door switches, e windows, no AC (mostly), no rear defrosters etc. I helped a friend do his FFR a year or two ago, and we used about a third of what was provided in the Painless harness. Painless was horrified that we removed much of the wiring and plugs, but where the heck are you going to hide enough wiring to fill a one gallon tub?
Enjoy the experience, take your time. There are a ton of great folks here who have built enough of these things if you get in a bind.
Cheers,
Richard Bailey