shoring a leaning historic brick wall

[JMASE]

I have an historic free-standing brick wall (no roof but with returns) approx. 12' high with a serious out of plumb condition at the top. It needs to be shored for an extended time, and I don't have room for a conventional shoring brace on the compression side. Has anyone used debris netting/cables in a structural way to shore a masonry wall from the tension side?

 

[sponton]

how long is the wall? can you run a steel member all along it and then one for the returns so it kicks back? or members at the top and then posts every so often so they take the lateral?

 

[JMASE]

Maybe. Was thinking of using horizontal cables with some sort of "deviator" at mid-span and at the corners to tie back to the return walls.