If you end up needing any patchpanel from the "B" pillar, BACK (anything SUBURBAN/PANEL-specific...and you likely will), here is the only guy I have heard of, making them.
Not sure how complete his product line is, but he is highly recommended on the Stovebolt.com thread I am giving you the link to:
Good luck.
AS I WAS TOLD,
"...Ray Stanley is the guy that makes the panel/suburban patch panels. He does nice work and will do some custom pieces too.
http://www.stovebolt.com/ubbthreads/...rue#Post596784
"Some of his parts are available form Jim Carter's too".