I have two Battalion Bits kits for sale. These are flat deck rail cars.

Both are new......

BT-3: 50 ton Flat Wagon Type SSyms $20.00
BT-4: 80 ton Flat Wagon Type SSyms $30.00

Both for $45.00

50 tonne Flat Wagon type SSys
http://www.belcherbits.com/lines/battalion/bt3.htm
This heavy flat wagon with double axle bogies was used by the Deutsches Reichsbahn for transporting PzKpfw V Panther tanks and similar sized vehicles up to 50 tonnes. The wagon will fit O gauge 2 rail track but is not intended for operating layouts

BT-4: 80 ton Flat Wagon Type SSyms
http://www.belcherbits.com/lines/battalion/bt4.htm

This very heavy flat wagon with triple axle bogies was used by the Deutsches Reichsbahn for transporting PzKpfw VI Tiger tanks and similar sized vehicles up to 80 tonnes. The wagon will fit O gauge 2 rail track but is not intended for operating layouts