Bracket type 3 gets attached like so:-
Then prop the boot lid open the the height you want it. Attach the tube end of both struts to the bracket. A spring clip simply pulls out, pop the ball joint on and the spring clip back on.
With the boot to the correct height attach the rod end to bracket type 6. hold it up to the boot lid and mark where to drill. The just drill your holes, screw the bracket in and reattach the strut.
Once the struts are in place remove your make shift boot lid prop. There are some very small allen key head screws near the bottom end of the strut. I found these all to easy to thread so be carefull. You need to unscrew them and let a bit of gas out to adjust the strut strength. I had to let a fair amount out but keep checking by trying to close the lid. If you let the gas out until you see the one side of the lid start to drop under its own weight you've gone too far and will have to get them re-gassed.