You might want to try these people, they are in Lakeland FL. They are Classic Creations of Central Fl.They are a Mustang Specialized shop. Their website is www.classiccreationsfl.com
Tell them that Luis from Puerto Rico sent you. I have a 1968 California Special at their shop now. I sent it from PR to Florida. They do great work and honest with their prices. What kind of work do you want to do to your car?
I have another Mustang Specialist in Georgia if you like please send me a pm.
There's a guy named David Knecht who is in Switzerland (just south of Mandarin) who does great work and is the most honest guy you will ever meet. Over the years he has worked on my 65 coupe, 68 fastback, a 70 sportsroof, and a bunch of other cars (Camaros, chevelles, etc.). Let me know if you would like his contact info.