My son has a 49 3800 panel. He used 94 Silverado buckets. They have the tilt and slide action that was used up until the 3rd door was added to extended cab trucks. You can climb over/between them easily enough, they sit on the stock floor just right with the 94 risers, and you can easily find covers for them. Not super common as most were 60/40 split bench but you could go that route as well. I think the 3rd door was a 1996 option.
