I think the biggest problem would be that the 80 doesn't have the clock spring at all (early), or one with enough circuits (later) to provide power to a heated wheel. I have to admit one of the reasons I like my 80 is the simplicity, but a heated steering wheel and steering wheel controls would be nice. Might be easiest to start looking for a donor column with a heated wheel. But be prepared to deal with fabrication, wiring, and dealing with airbags, etc.
I just bought a new steering wheel and am about to embark on this...My 80 is going through a swap rn so this is just another item I am adding to the list. Worst case...I just have a new steering wheel. Best case I have a heated steering wheel with paddle shifters and buttons.