What do you mean by how you should sell it? I would list it with an opening price of $0.99 and let the good times roll. That is your cheapest listing fee and unless you feel the need for a reserve or minimum price, it will bring you the widest selection of bidders. Everyone want to think they might get a deal.
If his stuff sells strongly still, and I know it did earlier this year when I was trying to land his signature (never did, by the way), you'll get a fair market price for it.
I don't know if you've listed this yet, but there's a guy who has snapped up virtually every 1/1 made of K-Rod. Here's a link to pictures of his cards: http://www.ekronhsu.com/2-3_02 K-Rod.htm
I'd say he'll probably end up with it if you put it on ebay.