It can be done......if you have the money and the talent to fab a custom mainstay bracket to hold the R1 nose in place, sure it could be done. BUT if you had to pay someone to do that, it would set you back a lot.
A friend of mine took a zx-6 nose piece and fabbed it to a zx-10 but he spent a good deal of money and it took him a while to make it look right.