Honestly, many on here have probably run Dommy's on the street as I have, and yes, they are livable, but anyone who has had a pair of them and then gone back to a single will tell how much better even a single is over duals for drivability....
But the best way to satisfy the need to know might be to try it. and see...Obviously, anytime you put the time ,effort, and money into somthing, you can make it work.
Me, if I had a nice pair of restored 750 Dommy's., I would want to make sure they have screw in high speed and idle air bleeds at a minimum....Also, I would switch out the 4 -50cc accelerator pumps to 30cc ones....Jet and go from there. Bet it would be fun...