Randy,
Congratulations on the purchase of a wonderful Cobra!! Anything Don was involved in is sure to be first rate, and that Cleveland could sure sing a pretty song!!
Now Don, I am sorry to say I agree with Matt on this one, so I think you NEED both a Mark III and a Coupe!! This seems to be the perfectly logical answer to your question, UNLESS you want both a Big block and small block, AND a Coupe..... shoot, you could swing this if anyone could
I feel your pain, choices, choices............
Your friend,
John Russell