Think about it for a second: How do you think a dealer is going to find a particular car for you, especially one as common (relatively) as the 350? They're just going to trawl PH, AT, eBay et al and see what's out there then charge YOU for that privilege.
Simple answer is no, unless you're looking for something very rare or unique than just do the legwork yourself. There's not exactly a billion combinations out there