Custom 72 Door Panels

[muddpile]

I was just wondering if anyone has ever tried to tackle the task of building custom door panels for a 72. The earlier style appear fairly simple, as they don't have any real contour, and can be made out of any piece of flat material. For the 72 molded plastic style, it appears as if you have to build out the area for the window cranks and the door handles. Has anyone got the measurement of how much you have to build it out, or if you do at all (maybe my eyes are just playing tricks on me)? Any help would be great. Thanks!