Woodydat there has been a couple of cars set up like this in England and they dont seem to have any trouble running two engines.

The early model suzuki's (e.g. LJ50 and LJ80) had a third drive shaft between the gearbox and transfer case. They are a lot narrower than a 1200 though. If you going for a 4x4 (offroad) version, have a look around at some of the overlanders that are around. (typically a holden hz/hj series dumped on a hilux or landcruiser chassis) and do something like that.

I'd say the best thing to would be find a small 4x4 that has a chassis (one that unbolts from the body) take the body off, strip your 1200 down to a shell, and put that on top. You'll probably have to put a complete new floor in it, but that way, you have all your suspension and all mechanicals there before you start. You also don't need to worry about strengthening the datto chassis, although you may need to lengthen or shorten its new chassis.

I've thought about doing it before. The main pitfall once the project is complete, is that is more than likely going to have a higher centre of mass than the 4x4 you started with, and hence they tend to roll a lot easier than most 4x4's.

subaru have north-south engines, just gotta adapt somethin to the box, but that would be the least of your worries.

Still reckon that the evo drive line would be the best way to go, they have tricky differentials and computer torque split to each wheel. It is a true drivers AWD drivers car

there was a mk 1 escort with the cosworth awd running gear and motor stuffed into it in england quite a few years back. one of the problem's they had was the width of the track, ended up with huge flared guards. looked good though.