[Closed] Shimano 11sp cassette on 10sp hub.... Mtb & road the same?

Building up my Vaya again based around (most likely) 11sp rs685 drop levers....

I'd like to get something around 11-32/34 on the rear. The GS rd will go up to 32t, maybe 34t??

I have a 10 speed freehub.... Don't really want to fanny around changing wheels/freehub bodies.

Am I right in thinking that some 11 sp 11-32/34 cassette's will fit on a 10 speed hub? If so which ones? Can i use mtb cassette's? Trying to do it with used parts and on the cheap.

If anyone has a rd and cassette that will work and are willing to part with them let me know.

Cheers all