I've always hoped he'd open source everything if he didn't plan to take it any further *hint-hint*
Wouldnt help Im afraid, my problem was with the coldfire/68K bus interface with the V4 CF.
A V4e CF card may work, assuming you used the PCI bus of the CF as the interface between the CF and the miggy while keeping all address mapped correctly.
I have backtracked to the MCF5206 Coldfire which seems to have a bus that may suit the miggy more (There isnt a 5406 though, so if this did work I dunno where it would take me, except freescale have put up a "Make your own Coldfire" proggy which you build from the basic blocks and when the design is done it gets e-mailed to Freescale... what happens then I dunno, if enough people want the same thing maybe it gets made)
Im also doing a few other bits just to get more insite into miggy specifics. (AKA Im playing about with stuff)