FYI:
5-speed Getrag from a 2.3 16v (note Getrag name between shift arms and posn of starter wart))
Similar Getrag that will fit 616-617-110 engines (note posn of starter wart).
Ancient 5-speed (missing bellhousing) found in 114/115 and 116 chassis manuals:
OK, a cursory look in the Russian EPC shows the flat-topped, cast iron 5-speed tranny available in the 280 (W114, M110). If that ebay tranny is depicted correctly, tit should fit onto the back of an OM 616 or 617.