I like your double cage/double stake technique, Boggy.
I used to put about a dozen+ plants in those kind of livestock fence cages. Then, I began growing more plants and the cage approach just got to be too much.
One thing I was doing was putting stakes in with my cages. First, I used 1 stake, then 2, then 3 stakes per plant/per cage!!! All of this, to keep the plants from toppling over late in the season.
As I transitioned away from using cages, I tried just 3 stakes with baling twine around each plant, no cage. Why had I bothered with cages if I needed 3 stakes to keep them from falling over? I asked myself! Later, I used the 1 stake with the plant tied to it . . . altho' there were years where I just let 'em sprawl, mostly out of laziness.
What I hadn't considered was attaching cages together in pairs/with the stakes - I can see how it would work well. Maybe I will get back to cages as the tomato patch shrinks a little. Hey! I've got nearly 10 less plants this year than the last several!
Steve