Anyone ever "receive an offer" from a player for their G/U equipment?

[rose14]

I will be missing Sportsfest in Chicago this weekend to attend the Cardinals-Angels series in St. Louis. I am taking my two Vladimir Guerrero minor league jerseys for him to sign. One jersey is already signed on the front but I want to get him to sign it on the back as well. I haven't really thought about what I would say if he were to ask to get them from me. I expect he would want them back as they were his first two jerseys he wore as a professional. I would ask for a trade but I don't know what would be fair since these are so rare and basicly one of a kind compared to one of his regular Angels jerseys. Here are the jerseys.

What would be a fair trade if he were to want them back?

Todd