There are a lot fewer Shelbys around, but maybe some enterprising chaps will come up with reproduction Ford wheels?
http://tonysparts.com/newproductsB.htm
I saw these highlighted on the last episode of Graveyard Cars and was wondering if they were being/going to be made for Shelbys. It seems so similar that it would be easy for someone in the business to do it.
Same with radiators for the Mopars.
http://www.restorationradiators.com/products.asp?cat=1