didnt turn out to be too hard. some tips i can think of are use 5mm bolts and nuts is ok instead of rivets. its just a little tricky to get some of the nuts on. do them up tight. u need a 10mm socket for the guide rail. bolt this on second i think.remove the regulator arms and also put them back in with the window about 3/4 of the way up, and have the winder handle close to get the regulater back down to the right place. you can also move it around a bit with the window to line up the bolt holes. bolt the 4 bolts to the regulator last. its easy enough to do with one person.
sorry its a bit out of order, but its just a few tips, not the whole exact process.