Silent Warrior
Spaceman
Perhaps not entirely suitable, but I thought I'd mention that I'm selling not just a few of my games to clear shelf space - including what Wing Commander games I have. It's a Swedish auction site, but I think you can puzzle it out (even with Google Translate/Babelfish). Someone has already laid a claim on Wing Commanders 1-IV + Priv2, but maybe there's something else for you? WCP is still available, at least.
Link: http://www.blocket.se/vi/35193405.htm
Link: http://www.blocket.se/vi/35193405.htm