Dapol 4F-071-166 - 27 Buckley Junction 7 Plank Wagon Red New Boxed OO Gauge. Dapol 4F-071-166 27 Buckley Junction 7 Plank Wagon Red New Boxed OO Gauge. Dapol Model two variations of 7 plank wagon, the internally braced variant with a 9 foot chassis with no end doors and a 10 ton capacity and the RCH standard with a 10 foot chassis and 12 ton capacity.