1976 ltd wheel swap

Can someone tell me what laced wheels will swap to a 1976 kz900 ltd and still retain the rear disc setup? the front I don't see as a problem

Front is no problem. Back is more difficult. I did this with a '79 LTD. Putting regular spoke wheels on it, I had to get a rear caliper from a '77-78 A model in order to clear the spokes. Then the axle spacers didn't line up right. I had a spacer shortened to fit.