I see that you're in Boston, but if you don't mind the ride, my twin brother is pretty well known on Cape Cod as far as rebuilding engines and working on heads. He works at Mid-Cape Machine shop in Hyannis, Mass. He's been there for 18 years and knows the Ford engines inside and out (although he can do any kind, from any manufacturer.) If you decide to go there, the phone number is 508-771-1988. Ask for Dave (boss) or Pauly (my brother.)
Paul rebuilt my engine last summer and this summer put on heads intake injectors and all my other stuff. He does great work. Dave and Paul are really great guys.
Not sure where your actually located but Coughlin machine in Norwood, MA does good work I've had them a few things for me. Your probably going to be looking at @ $300+ for that work.