eBay is not that difficult. The secret is to watch and not bid as to drive up the price until the last few minutes.. it takes nerves.. a bit, and a steady heartbeat, cause you know you don't want to bid too much. See what the absolute top dollar you will pay is, and at the last 2 minutes, bid with your max at that dollar value. It will be hard for a sniper to outbid you if you are willing to pay the price... they tend to go to their limit, which is usually less than $50.00 cause they retail em so that they can make a hefty profit.. The two links above that I pointed to are both available. I already have that particular Cub and unlike many on eBay, I just want one of each.. period. So please feel free to go and bid on those early Cubs. If you don't want the box, then the second one is the best value. If you watch it, AND DON'T bid on it until the last few minutes.. then you will be okay. I hope you already have an eBay account.. The first one is a real nice one, NIB box is pretty reasonable.
My 3 cubs are safely ensconced with a friend, and he will probably be getting the other ones.. I am not too happy with USPS at the moment.. they lost me cub
But go for it.. you may get lucky. I paid less than usual going values for the Cubs I bought.. patience is useful at times. However I see you are in a rush, so do what you got to do for your Uncle.
I am assuming that you want a #668 and not the 2008 RPRU Special Edition.. which isn't exactly what you want, but if that is the case, and you are willing to get the 2008 RPRU SE Cub, then Ken at Carter & Grunewald
is the guy to help you out