I assume you mean the mid berth bedding is missing. These are nothing more than fabric covered foam so you can either buy the right foam and fabric to sew it yourself or have an upholstery shop make it. Same goes for the forward filler cushion. The table will need to be custom made to fit, a piece of plywood covered with formica should be easy to make. Then you can buy the pole and base mount from Todd who supplied the originals.
1997 2400 SCR
5.7 Vortec / Bravo 2