(I got to thinking about this while mounting an original style handbrake utilizing a nifty little nub mounting bracket supplied by Russ.)
Is there any reason not to just put a darn cross member on there? Flex or crash worries or something? If anything, I would think it would help a bit.
I mean, maybe it's just living in the oil patch, but structural pipe (e.g., pipe that is good pipe, but no longer good enough for the oilfield) is plentiful --- got a piece of just the right size.