Apparently this older man is selling several expensive items on eBay; Rolex watches 18K Gold, Fine China, etc. He's offering 10% profits if I sell any items. Though, I have no experience on eBay. So, I might as well ask you guys, though there will be trolls. So, any ideas on how to sell expensive items?

Note: I do not know all the items he wants to sell yet. I just want basic suggestions.

/Hope this is the right section to post this, since it's only getting advice... sorry in advance if it's not.