I want to order piston ring for the following isuzu 4ja1,4bc2,4be1,c190,c223,c240,4hf1 NPR quality and packing toyota 3L TP mercedes benz om401 om442.t om 400a/la om442 om 501 GOETZE fiat 65mm,70mm,70.8mm,76mm,79mm,80mm,80.5mm,89mm.75.5mmCOFAP for mercedes items some has three chrome ring.and some has 1 or piston moly Please give the price of the chrome and tell me how much I add if i subistitue one ring by moly I also need piston and liner MAHLE, please feel free to contact us.