So... nobody can really agree eh?
Wasn't there a dissassembler (originally geared for 680X0 > PPC conversion) and assembler kit that let you reassemble executables for different processors? Sort of a semi-smart cross-assembler in that it could re-target disassembled executables to a different 680x0 processor.
I would consider the 68040 if I could get my hands on that mythical 040 patch for arp.library
Makes me wonder how that ColdFire card will handle 68030 and 68040 instructions. The company has curiously mute on the topic.