At the other end of the spectrum...
I got some mags out of the trading post $150 for the set of 4. Only 15x7 but will do until I make a decision on upgraded brakes/stud pattern etc.
Quite like the look of the Dragway mags
http://www.dragway.com.au/Billet%20Wheels%202.htm
Not exact replicas but have seen some (DB51B) on a Cobra at the Vic Club meetings and they look very nice. Have the brochure somewhere and seemed to be reasonably priced at the time.
LoBelly