If indeed you shot a trophy turkey, the person to contact is Jordan Taxidermy Studio's outside of Punxsutawney PA
Marc is like #2 in the world for turkey mounts.
We just picked up our deer mount a couple of weeks ago from last year and I believe that the price for the deer head was $550.00 and that was a lot of money here for that type of work. But when you get a professional looking mount and a 100% guarantee that if you have a problem you can bring it back and he will make it right - I don't know how you could go wrong.
http://www.wpst-taxidermy-school.com/