I went with the TKO-600 from Keisler last fall and love it. It is in my 69 Coronet R/T convertible, I had the same feelings as you about doing it to this car but finally took the plunge.

I will be the first to admit that I am no mechanical genius but I had a great experience. They answered all of my questions before the sale, the kit arrive 100% complete, the installation was straight-forward and well documented in the instructions, and they've been helpful after the sale when I've had a few random questions (like getting me the Ford part number for a new speedo gear to get it corrected).

I can't speak for anyone else, but I'm a very satisfied customer, have a 3.73 Dana 60 rear and it is really nice cruising the highway at 75-80mph.

Darren


EDIT: The hyd. clutch master cylinder mounts where the original clutch rod would have gone through the firewall and the fluid reservoir mounts on the side of the brake master cylinder.