He could just be a dumb ass and trying to use a private postal company who is gouging him.
I had the same issue with a guy who knew his ebay'ed unpolished tunnel ram was worth $400, in spite of my summit racing showing him a new for $310. We had a $175 agreed price, so he tries to nail me with $110 shipping.
Well, I have a fex ex account that is on line. I make a shipper to myself from him (charged to my own account of course), I email him a pdf of the label. Literally all he had to do was print it, stick it on top of the box, and drop it at any fedex / kinkos in the world. He still had issues with that complicated proceedure ('cause he wasn't getting any more money!) but finally relented a week later and shipped it out. I think for me it was $28 total from Oregon (I get a great discount).
I go to elsinore too, so I could potentially pick it up. I also have to go up to gardenia so that could get it a little closer.