Yes, I've read all of the posts and I know the usual answers to this question (and no, I haven't contacted Fred Lustig), but I'm wondering if anyone out there has any rangefinder cams for the Super Graphic that they might be willing to part with? I'm looking specifically for a cam for a 150mm lens, but ANY cams other than the one matching the 127mm Ektar would be helpful. Thanks!

Lens are rarely their marked focal length, they can be off by as much as 5%.
Graflex optically measured each lens and used the closest match cam cut for the majority of lens of a given marked focal length. There may be as many as 6 cams for a given focal length.
http://graflex.org/speed-graphic/super-graphic-cams.html
3 cams are close for 150mm, 152 was the marked.
www.southbristolviews.com , graflex manuals link on the left for the info on:
http://www.southbristolviews.com/pics/Graphic/manual-pdf/MySuperCams2a.jpg

You can make your own Accurate cam:
site search>keyword super graphic cam>select search for all the terms>fourm: speed graphic help>search=
http://graflex.org/helpboard/viewtopic.php?t=4653&highlight=super+graphic+cam
or I can make one for you.