Looking at the upper left photo, if you're worried about the wall supporting all of the weight, you could run 2-10' lengths up from the floor. Then the wall would only carry the tip weight with most of the load being transfered to the floor.
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that was what i'd suggest, sight unseen.... all the way to the floor...
at the top, i'd pop two holes thru the wall, and use 1/2" allthread
thru the wall, and put another piece of strut between the allthread,
horizontally, on the back side of the wall, for backing... it isn't going
anywhere.... use a couple of anchors at the bottom of the wall, to
keep anything from moving out of plumb.
randy