I am interested in Liebherr Excavator Engine Parts.Need engine's spare- parts for Liebherr 921, 1979 year, 921A/3711Engine: DEVTZA6 F5L912 LK10 №61469881. A set of Main bearings and a set of conrod bearings.2. Axial run-up Rings3. A set of piston rings on 1 engine4. cylinder head - 1pc5. Rings under the liner (1 thin in the bottom, 1 between the head and the liner )6. Manifold gasket (on the intake, exhaust)7. Sealing rods (cone ring, washer, spring)??Can you specify price, weight and availabilitywaiting for an answer