Someone please correct me if I'm wrong,but I believe that laser measurements were used during the sculpting of the "original" MSH mold....I don't believe that there was a compiled list of said measurements however :facepalm
Steve
EDIT: Oh and the measurements of which I speak are from the AoSW exhibit which was of the ESB hero helmet.
The list on TK-409's site is for the Mystery Helmet, and while some measurements are on the Mystery Helmet are close to the original, it is not a 100% accurate to the original ILM helmets.