Crappy drawing but eh,
Back Sweep,
Small space between Down tube and Crossbar (like strippers)
(cross bar, between where the grips go) Be a Square/Triangle Tube.
HIC aluminum bars are hard dude, they need to be oversized and double thick, so you'd need either a built-in clamp, or a full double-oversized clamp just so it would work and not be way too weak.