Apparently GTD is no longer developing the GT40 kit and CAV is pushing hard with many distributors in US. Rave reviews on the fit and finish of the car.

CAV offers 6-speed ZF direct at a good discount (www.gt40s.com, Mar 21 '03 post by Dan Dinverno). ZF is *EXTREMELY* expensive ($16k brand new 6-speed...rebuilt ones for about half that), Audi Getrag is $2k new but only handles max of 400hp! NOTE: The engine sits 2 inches lower with the ZF vs Getrag and the ZF was one of the original trannies used in GT40s.

351W engine stroked to 396 preferred by many over 302, plus 48 IDA carbs are available. The standard 351W is ~385HP, $5200 @ 2gmotorsports.com and recommended that only ZF is used.

Dealers:
Virgina - http://www.2gmotorsports.com/

Options:
Gulf fender flares and deck vents $2000
Gurney bubble $800
Roll cage $3000
Twin nostril panel ?
4 x 48IDF $2995 (what about IDA?)

Detailed review of the CAV GT40
http://www.pistonheads.com/doc.asp?c=112&i=7318

Good used source is the Club Cobra forums...several have been forsale recently there:
http://www.clubcobra.com/forums/forumdisplay.php?s=8258d462cb6120d1e9f1695cf1293200&forumid=24