The take apart process is quite tedious, I'd rather save myself the time spent doing it if I can at all. The outer case dimensions seem to be the same, the board layout seems similar layout. But I'd rather not find out 10 - 20 screws in that I have to disassemble again and take out the new mobo
Well the airport slot is a different factor but the same size, space, and position just the shielding that overlaps too much (enough to make a contact). So I don't particularly see this as an issue. The ram is also as far as I can tell well in space. The keyboard/trackpad connector I haven't actually checked, good thinking.
Thanks Apt, thought about it but it doesn't give a great indicator of overlapping screw positions etc, hence asking on the boards in case anyone had done this before. Good thinking though, might be my last resort.