I ran a quick search, but nothing came up so I figured I'd just throw this out there. When I was installing my Helibars (sixth gen) I noticed that if you swap the stock bars left to right it would move the controls back probably 3/4". Now, there are the locating tabs that would be in the wrong place, and the cutout for the brake wires would be wrong, but it wouldn't cost anything. If I didn't already have the heli's I'd probably try it myself. If anybody does try or has tried this, please let me know how it works.
If this link works, I did a quick test for tank clearance. I'm not gonna switch all my stuff over cause like I said, I've already got heli's. Take this info as you will.