Receiver only for such an old unit without accessories is not worth much. Buying accessories new will be expensive. I have two battery packs, but can't see parting with one. At this point, eBay might be a good option:
http://cgi.ebay.com/Garmin-Aviation...wItem&pt=GPS_Devices&hash=item335f2d3c43http://cgi.ebay.com/Garmin-195-Avia...wItem&pt=GPS_Devices&hash=item19be197e74