Maybe depending on how many you have, do like 5fig lots? That way shipping won't be too expensive and it might encourage more people to bid. And yes do it auction style! I sell things a lot on ebay and a lot of times people get over competitive and over bid. : )
If you are having trouble pricing stuff, or starting bids, look on ebay under 'advanced search' and click on the box that says 'expired listings' (or something similar), click search. That should help some!