I think I have that file...in addition to every pep file on the 405th and 3 other paper craft sites... Like 1400 files. I know, I am a sad strange little man. Also I have been dabbling in creating pep files and am releasing my own cqb helmet next week. I could probably mock up a new collar to fit the build you made. I'm not very good at it but the collar shouldn't be too hard.