Currently I use a strongbag 22" Vortex with a nice J-hook. I usually hang my second bag (a large briefcase) by the handles of the briefcase, but because this requires both briefcase handles to be velcroed together, I have to unhook and un-velcro in order to get anything out of the briefcase.
It would be better if I could hook my briefcase to the j-hook without having to hang it by the handles. I'd like to modify my briefcase to add a j-hook bar, much like you see in the LW Stealth series, e.g.
http://www.luggageworks.com/catalog/.../89/image/204/
Any ideas on where you can buy that part or something similar?