Hi Bill,
That Impala sounds like a nicely equipped '69.
In '69 RPO A51 Strato type bucket seats were available in Impala and Caprice 2 door.My research indicates that 28,894 A51 '69 full size were produced.Fairly rare,but not super rare<g>.Definitely worth removing if car is parted out.Be sure to get the steering column as well!The complete bucket seat/console/steering column and related electrical harnesses,hardware,etc..should bring approx $1,000.Being an L48 350-300 car it should also have a 12 bolt rear end and most likely a turbo 350 trans.Nice combo.What colors is it?
My thoughts,Jim