I did mine o the drive with no jacking up . Have to have a long arm to reach the bolts but easy to do as the car is high . Would be easier still if you could drive front wheels into a ramp or few bricks but not needed .
Basically per side - remove rear then front trays with few bolts and hex screws . Remove 4 rubber bungs (2 front 2 rear) , insert the bolts into the pre drilled chassis holes and tighten to recommended grip . Trays need slight cutting using a basic hack saw ( 1cm wide 18cm long) to straddle bracket arms . I was worried about this bit but was no problem and easiest bit . Resist the trays. I did this starting at the front and worked the nuts to the back . Then slide the boards onto the brackets and 2 bolts .
First one took a hour as didn't k ow what was doing and didn't want to bust my brand new car , second was half an hour if that .
Need a torque tench that goes down to 20nm as a lot wheel ones start at 40 .
Don't follow the cutting measurements before measuring your car as I found the guide was 1 or 2 cm out vs what was there. Shape and cut dimensions where ok .