Try searching or posting on the Good MB Shops general discussion forum. I have no idea how many members are from your area, but it is possible that somebody knows of a good MB shop nearby.
1976 300D (W115) - 330K and still going (sort of)
1991 300D 2.5 Turbo - Sold at 221K
1983 280SEL - Sold at 206K
1981 300SD - Sold at 232K