Got it! Makes sense. I'm going to try the I-beam spanner thing above, I think I've got 4 hardwood 2x2s sitting around doing nothing leftover from a kitchen remodel that would work perfect if long enough. I'll post pics if it'll work. Gonna need to wait until later this week, next two days are going to be spent doing polymer injections into the wall cracks (note the orange spray on the wall).

It's not just the bars, the stems & levers are a pain in the neck too............

Since my garage is my bike shop...and the doors are never opened, I use the rails for the garage doors to hang handlebars from...only thing...an occasional drop!