I'll skip my first three choices as they're outside the parameters of #1. That being said, I'd suggest going with the first one that comes up at a great price, maybe even a "good" price. Run with it for as long as he wants and reappraise. When "the other" comes up at an equally good price get it and try it out. The gun market is good of late. He's trading paper money for "steel" money. Then decide and sell off the other. Even if he takes a loss (auction, sale, whatever) he can chalk it up to rental or learning curve or whatever. In this market, any loss will be minimal, esp if he got them/it at the "good" price. There's no harm or foul in having two of them for a short time period.