Hello, I am resurrecting an older Cat V50D serial # 3EC6078. I have managed to get this machine running, but am having trouble with the worn out carburator and cannot seem to find a rebuild kit or replacement. Unit has a Peugot XN1P engine that was converted to LPG, and I was wondering if anyone has ever replaced the carburator with a proper propane mixer / carb, and if so what make and model was used? Also wondering if someone could tell me the year of this machine by the serial number. Thanks in advance for any input.