As with the Ozark Min Parts listed for sale, these are excess to my needs. All NIB unless noted otherwise:
781 - 2 avail, one open ($6/ea)
1837 -1 avail ($6)
785 - 1 avail ($6)
820 - 2 avail ($6)
or swap for unit for unit for Kadee #779 or G scale 905
Paypal, split shipping, lowest cost/flat rate (ConUS)