Brittain Autopilot system. Avoid the factory 2-3 year wait. This is a complete Accutrack and Accuflite system. It contains all the major parts, you will only need a few fittings, hose and hookup wire. I have this same system on my plane and its an easy upgrade for anyone who has the factory PC or wing leveler. It will track up to 2 nav or gps sources as well as any heading dialed into the DG. The DG does have one knob missing which most shops should have laying around. Unlike Stec, Brittain will check out/ repair their used systems and give you the STC for a very reasonable amount.
$2500, washing machine not included.