yeah all ya gotta do to mount them is screw them into the guard and bonnet in the correct spots.. 2 small screws or bolts
extend the strut to its full length tho that may require some good thinking if your not as strong as an ox
open your bonnet with the pole, place extended strut where it fits at the right angle to sit in the fully extended position with the bonnet open ...
mark these two places on the bonnet and guard (the struts should mount sideways onto the bonnet, and run flush along the guard/body in the engine bay.
i'd allow an extra cm of space to open your bonnet so you dont shorten the life of the strut by extending it to 100% of its operational length every time you open the bonnet (i.e. dont mount it at a distance that will over extend the strut)
or im sure a panelbeater would take about 10minutes to do this job, and he'd probably re-align your bonnet while he was at it