WoW & welcome to Mogster Club which is showing good growth from past 8 Months 
Very clean indeed. DeeDee & Fishak are right about the mechanic. If you are talking about the fuel pump then there is no big difference between Mog's & Merc 123 240D's pump (Adeel correct me here). Look for a mechanic who have old mercdes parked @ his workshop, he will service it as its diesel pump doesnt go anywhere.
Do you have its rear frame which is installed on the dala?
DeeDee I spotted few down model Mog's Model Speedo Meters, it was huge and had built-in fuel & Temp gauage.