Not sure why you would want to...the 1150R tank and scoops are ugly to me compared to the 1100R nice smooth style.
The biggest issue I see is that the scoops are for the oil coolers maybe on the 1150...not sure though, but if not, why the heck would they put those ugly scoops on there. I do not think the 1100R has the cooler there on the sides.
As far as just fitting onto the frame, I believe they would nest on there, but the coolers may be the issue.
it is easier to ask for forgiveness than permission