So since I didn't want to add extra stands right now, that left mounting them on top of my OmniTop12s.
Here is what I came up with, in case anyone else is interested.
5/16 18 threaded rod, some aluminum bar stock, aluminum L channel and a couple of t-knobs.
Mounted on the OTs.
Haven't tried them out for real yet. We don't have any shows coming up soon where we will be using my system. I'm sure they will work fine, they are pretty solid up there.