get a pair of buckets.....and do a Center console build. When going from bench to bucket, you will need to drill holes for the inner mounting.
1988-98 Fullsize Chevys have dimples (markings) in the floorpan for factory bucket seat mounts. Mid size '92-'00 pontiac bonneville, buicks, Pontiac Gran prix, (and other GM midsizes on the same platform) bucket seats will bolt directly to '88-'98 seat risers with NO MODIFICATIONS, they both share the same riser-to-seat bolt pattern. These seats are cheap, and plentiful,and come in cloth and leather,recline and power lumbar was avialible. Or do a buch of 8's.....