I think this is what is going on
Lively, I had to read this a bunch of times before I figured it out.
I think the buyer got the pump and pan but not the braided line or AN fittings. The seller only referenced the pump and pan in the add, but pictured the lines too. The buyer claims that he bought it all.
This is a disagreement based on communication- I dont think this is to be construed as a scam or even bad seller.
What the seller probably should have done is added a line "fuel lines and fittings pictured are not included". No issue then.
This is all assuming I am interpreting the buyer and seller commentary correctly.
Scorp