If its going to be stood for a while you will need carb kits anyway, as to the 1100, not sure how easy a fit that is as the 1100 should be electronic ign wit the 1000 being point plus the generator is different i think (but willing to be proved wrong) Also carbs will be different.
Make sure the slides are very free in the carb tops, they should fall in and out with NO sticky bits.