vertical parallel cylinders, or horizontal opposed cylinders?
Also can you read the fist 4 or 5 digits of the engine serial number, 2nd or 3rd space may be a B or C
model number should be at the top of the data plate in the 3rd photo, maybe a CCK, can't tell from the photo, format will be KW capacity followed by model number so something like 3.0CCK or 2.5CCK