I like the current set up because it has a lot less leverage on the bar clamps. There is a little flex which I imagine is coming from the handle bar bushings. Once I have it together and ride it I'll decide if I will add cross support. I imagine I probably will. For now it's exciting to have the bars on the bike again. I have the cables from Barnett. I need to pull my brake line and measure it and send pics of the fittings to have a custom brake line made.
I will say if I did this again I would use 3/8" threaded binge since M10x1.25 bolts with Allen heads are a royal PITA to try and find. I used boltdepot.com to get two 35mm bolts. They are in Massachusetts and got them to me in only a few days.