So i was wondering what the rarest/scarcest IDI options combinations are. For instance, I have a '92 F350 CCLBSRW....i've seen a few (especially here..) not uncommon, but not everywhere either. Would the 5spd be rarer? I would imagine so. What's the hardest to find/lowest production numbers version of the IDI Ford? I feel the C350 could win but since it's a Centurion Conversion and not a Ford Factory product...does it count? Not to say it isn't totally bad-assed...cause it is.... Thoughts?