Will a early 70's Front fender fit a 79?

[CB750K-1979]

I have a 1979 CB750K. Will any front fender CB 69-82 fit? Or does it have to be the 750 and the correct year.

Also I Just bought this bike (need to get photos up) this will be my first restore. Is it "wrong" to be using incorrect parts (year wise) as long as i like the look? Or will bike enthusiasts mock my attempt.

thanks  

[Re-run]

I think the 750 fender from 79-82 will fit. I dont think the earlier ones will but I dont know for sure.