Not very good photos but condition looks pretty poor.
Most people bypass these and go to twin webers as they are too hard to tune.
I think you wouldn't get much for these and I assume you are overseas so post isn't really feasible
first set cost me $25 back in the 90's including the aircleaner.
I was given the manifold to start the set-up I had on the racer.
Basically ask what you want for them and if they sell great.