I am selling a brand new set of seats from Flightline Interiors.  They are grey Ultraleather. 

I was unable to complete my project, so I never even took these out of the box (except to to the initial inspection).  

They list for $1650, and I will sell them for $1300.  Plus, you won't have to wait several months :), which I beleive is the current lead time on new orders. 

https://www.flightlineinteriors.com/zenith-seats-and-accessories