My 1970 113's fuel pump (short-type) has quit working. My MB mechanic and I were shocked to find that replacements -- new, used or rebuilt -- are virtually nonexistent (if available at all they can cost over $2300). He can rebuild it, but is even having trouble getting the correct rebuild kit (his latest attempt, coming from Germany to USA, is taking an inordinately long time to arrive). I have contacted the Mercedes Benz Classic Center which responded saying they knew of no sources for the part, stating "... the only suggestion is to do an internet search with the part number 001 091 52 01" (which results in none being found). My 113 is hardly a show car (more aptly, a “daily driver”) so I am not necessarily interested in an exact match; I just want to get the car back on the road. Some forums have suggested that certain BMW fuel pumps can replace the MB original, but I am skeptical. Does anyone know 1) of a source for a replacement fuel pump; 2) if Bosch cross-references this part with a different, but suitable, pump; or 3) if some other manufacturer's pump will work?