Chris,
I have some 17" wheels that I have just taken off the Cobra (replaced with full polished versions) - as new condition, Halibrand style, gold/grey colour centres, 8" front, 9.5" back, Ford bolt pattern with similar backspaces (4 7/8" front, 5 1/4" back) from Vintage Wheel Works (V60) if you are interested.
Derek