I welded on the mounting brackets for the rear strut reservoirs. I ended up deciding to mount them to the side of the upper rear control arm mounting bracket. This puts it well out of the way of any moving parts and provides nice routing for the hose that connects the strut to the reservoir.
The hose follows an ‘S’ curve from the strut to the reservoir. I’ll anchor it to the lower control arm near the middle with a couple of adel clamps so that it can’t rub on anything.