Wanting to sell speakers but don’t know how to price them......

I am thinking of selling a pair of B&W 804S; either that or my 803S.

The 804S: one is pristine, the other has a small chip in the back and a small blemish where it was bumped. I’d rate them at 8/10.

The 803S: both are pristine.  Overall 9.5/10

I’ve looked online for comparable examples but could not find any. It is currently January 2019.

I’d appreciate any feedback. :D