Originals are nice but I wouldn't want to be in charge of the caretaking of something so pricey.
My dad, at the ripe young age of 70, decided he needed a challenge and bought himself a Factory Five kit. Finished it last spring and drives the thing everywhere. It looks good, goes like stink but to me it's horribly uncomfortable (non-adjustable seat and limited legroom for a six-footer). You'd think I was the senior citizen griping about his choice in fun cars.
He built it as a driver and not a show car, even painted the body himself in the front yard. I'll have to get some pics of it when I go up to visit this weekend. In the meantime here's what he used to get all the drivetrain and other parts and pieces for the kit:
PS he bought the Stang that way, don't know how it got trashed the way it did and I don't think I want to know