Missing insert pan for Hamilton Beach Roaster oven model 527

I am currently selling a triple buffet server by GE. It is new and in the box and says 'fits most 17 and 18 qt ovens. I bought it to use when I borrowed a roaster oven, but ended up never using it. It has 3 compartments, enamel on steel. It would take at least $11.00 to send and I would like $15.00 for the insert. If interested, answer this.