One reason I shy away from auctions like the one you use is the poor descriptions offered. I remember one auction I went through in which they were willing to answer a reasonable amount of questions. But others either refuse or simply don't get back to you.

As I recall, you paid in the upper $400 range? If so, I think you still got a pretty good deal. The muzzle cover and the cleaning kit probably add $25 each and the sling, maybve another $35 or so. Decent shooter mixmaster '03s run in the $550-650 range, so I think you did all right.