Thinking of selling G1 Fort Max

It's a bare-bones figure and missing most of its accessories, including the arm and leg guns. I do have Gasket and Grommet as well as FM's big gun. Of note, the Cerebros and Spike that I got with the figure are the more colorful Japanese versions; they're not in the best of shape(Cerebros has a broken fist, one of Spike's arms is superglued to his side).
I will probably put it up on eBay if I decide to sell, but I was wondering what the best starting asking price should be...any advice?
I will probably put it up on eBay if I decide to sell, but I was wondering what the best starting asking price should be...any advice?