I’m looking to part with a 1/35 3.7cm FlaK 43 auf Fahrgestell, Pz.Kpfw.III Ausf.M (Versuchsaufbau). Or http://www.dragon-models.com/d-m-item.asp?pid=CHC6771, and was wondering what a fair price would be. The kit is still in its shrink wrap from when I brought it, and is undamaged. I’ve looked on eBay for an indication of value, but there are none there, oddly. Any advice?