Phase 2 looms are a nice loom of proper cable so that should be much easier. AFAIK you will need door cards, looms, motors and switches from a donor car with the same number of doors.
The plug in the door is a total pig to get to, it has a captive bolt which threads through to the door and i was turning it for ages thinking it was going to come away (twat) whereas after loosening the bolt all you need do is reach into the door and pull the plug off from the inside.
Then it should be just a case of unclipping the old loom from the door (if it needs changing as u might find they only have 1 loom across the range) and bolting the motor and window runner inplace.
Do this with the window up to give you the most room to work with.
Hope this helps.