So, watching a YouTube video from a guy named Eric Anders Lang (did a great series on Scottish golf courses over last summer) and he mentions National Custom Works. Interesting as it is run by the former owner of Scratch Golf Jeff McCoy and the former Mac club builder Don White. Looks like they will build you a forged iron to your specs. Check out the gallery page as they have some nice muscle-back shapes to work with. M85 remake anyone?
http://nationalcustomworks.com/
Here is the video from Eric at a small 9-hole course in Tennessee, Sweetens Cove.