From what I’ve seen and read in my time on the forum,
@Aurora et luna is a knowledgeable member with information about the industry that regular stackers like you and I don’t have access too. I would certainly take those statements about dealers buying at near retail rates as correct.
Regarding pricing, you can set whatever price you like, but just be reasonable. It’s about finding the balance between the money you want for it, and approaching it from a buyers eyes and asking yourself would you pay that price if you were the buyer? I put up a thread for 3 x 1kg bars yesterday... priced it above the dealers rates, but within a number of what I’d pay if I were buying them. And I got absolutely swamped with PM’s and buzzes literally within 60 seconds of it going live.