I might assesses if I could do it myself.... but I've been meaning to go speak with the shop where Scott had the Dart seats done and see what they'd charge.
Doing the job yourself, prepare an area to work (top of the pool table) have a very good staple gun, stretching it on, don't hurt your fingers on staple.
Hard to find a person sometimes to do it maybe, I don't know, it can be done by you in possibly 1 hour. Barr stool recover I assume, two of them