I am interested in Siemens Common Rail Pump Pressure Control Valve X39-800-300-005Z and X39-800-300-18Z Volume Control Value.I would like to get cost and lead time on a quantity of one piece of X39-800-300-005Z and X39-800-300-18Z. I would purchase one sample of each at first but looking to purchase 500-1000 pieces per year if that is possible.