move the bottom shock fork towards the wheel hub then angle your shock/spring combo into there
poke the top hat studs through the holes and screw the nuts down a few threads to hold the shock there
now angle the shock towards the hub and slide the fork up and on to the shock body

after that will just be your luck whether you can get the fork holes to line up with the lca

best way i've found when doing it myself is to jack up just the shock fork until it lines up with the lca's bolt hole, shove a screw driver into it and use it to line up the hole on the other end so you can slide the bolt into