Regretfully the cylinder is still in the production step, and will be finished on 16th May, so I am not sure whether it is ok for your side.
Also I have checked the DHL shipping, the DHL shipping agent told us that the valve must be packed separately in the cylinder package, that means if we choose the DHL shipping, the valve cannot be stalled on the cylinder head.
The DHL shipping freight is 2049 RMB, so the total price is 577 RMB + 2049 RMB= 2626 RMB, the shipping time of DHL is 4 days around, so if this is ok for your side, please let me know.