I've looked at the BMW E36 bits, the E30 bits are broadly similar.

The rear suspension will require a bearing housing to be made to take the BMW bearings and to fix to an upright similar to the Sierra one, as the BMW set up is unusable.

The diff is quite big but can be squeezed in, and the same applies to the engine and gearbox, using mods similar to the MT75 ones.

The front hub isn't tall enough to be used alone and requires a fabrication like this



which is bolted to the existing strut mountings.

Hope this helps

Cheers

Chris