It's an interesting engineering problem which many people have tried to solve in different ways. The problem Norton ran into with the Commando was it didn't handle as well as the earlier Featherbed bikes, hence expensive solutions like the Vernier adjustment. The story there runs out, like a stream into desert sand - the company went bust and the alleged problems have been blamed on owners not knowing how to set up the adjustable isolastic mounts. (Yes, Norton Commandos are being built now but they are different beasts which I know SFA about.)
Eric Buell had a go at the problem with a rubber mounted Sportster engine. I've owned & ridden three Buell X1s, at which point I always say some people never learn. He succeeded in making the Sportster engine go like stink and the handling was superb but the plot vibrated like . . . I don't think we're supposed to say that these days. But let's say after a medium to long run your vision was blurred and your gentleman parts were numb. Rest assured, sensation returns in time.
Good luck with your venture, BluzPlayer!