Some real good info!   
I will start the plastic repair later this month, to many honey do's till then.  But will drill STOP holes now.   
As for the mileage, new air filter, carb's at 98%, etc.  Just use to good mileage on the Wing.  Yes these wind up about 1,200 RPM more than the Wings do, so there goes the MPH.  Will be happy with just a higer 5th gear on the interstates, can live with 38-40 in the twisties.   
Thanks again for the feedback!! 
Gary C