http://www.facebook.com/?ref=tn_tnmn#!/media/set/?set=a.10150107771542583.276570.87575817582&type=3
I would rather modify the car for normal w-body brakes myself. ;) If you can weld, I think you can mod the firewall appropriately without having to go through the trouble of removing the entire dash/firewall plate, etc.
EDIT: Here's an old post from TurboGTU where he was brainstorming this idea: http://www.tgpforums.com/index.php?topic=3266.15
Not sure if he ever completed it or tried it, but he can probably give you an update when he sees this since he's been posting very recently.
Chris A had told me about how he used a "F-body" master cylinder and didn't need to take the dash apart either. With what this person is saying with using the Dodge master cylinder that seems to be all that needs to be changed (besides re-flaring some lines).
Haven't done what I posted back then. But anything beats pulling that dashboard. Did it once on that Parts lumina, won't look forward to do it again.