its not a night mare but a Re Rig is definetly in order.....
the merc control cables are different, the engine harnessing is different, the oil tanks and hoses are different.....with some real jury rigging some of the harnessing and guages may work but its probably more difficult to do that then replace evenrything....
2001 CONCEPT 27SF 2001 250 EFI Merc (sold)
1994 Hydra-Sports 2000cc 2003 225 OPTI (wifeys boat)
2005 Kryptonite 23 Custom 300xs Optimax Merc
GSB Marine Chief Cook & Deck Swab