VA How much should I ask for these

[*71SWB*]

I just purchased a set of bucket seats from DUCK in NC in the factory blue with blue/black hounds tooth. I must admit they are awesome however my interior is to dark of a blue for them. I need to sell the covers which are brand new, never been sat on, other than them being installed and the seats wrapped in a plastic for protection. My question I have no idea how much to ask for them. Duck said he got the covers from truckseats here on this sight. As many of you know they are top quality. So what's a good price for the set. The seats covers are for 71-71 c10 bucket seats.