Superformance, Backdraft, ERA, Shelby America, Unique - possibly missed one or two - are all capable of providing a rolling, finished car basically just needing an engine and transmission. If you need a kit rather than a roller, I'm prejudiced towards ERA. They are so well engineered and scienced out that assembly is cinch. There will be a few issues and questions in the process but help is just a phone call or email away.
I hate electrical too.
