You are right that the cosmetic restoration had been done by one of the best around 20 years ago and it hasn’t really been ridden since. It’s as though it was done for a museum, not to be used. I want a rider.
As for vibration, it’s funny but a lot of modern bikes buzz my hands numb in 15 minutes but not an old Triumph, at least not one running right. It’s a twin and not the smoothest but Triumph cranks back in the day were balanced for higher rpm smoothness at the expense of idle smoothness. The slight jiggle of the front wheel at idle is normal and goes away the instant you touch the throttle. My engine will be balanced and blueprinted, hopefully putting out between 15-20% more HP than stock.