Yes we even do tanks and the petrol tank fittings.We have fuel cap in stock now plus most fittings for model H and 1912 to 14 , plus Model P 1 3/4 caps in stock.we have all  the drawing for the early model to make them as required.We have made tanks for 1908,1909,1912,1914, Model h and Ricardo so far for around the £550 TO £650 RANGE FOR THE ABOVE MODEL all tinware finished with fittings ready to paint.