Similar story: an SL maintenance, parts & restoration specialist this week quoted EUR 15,000 for one of our fellow-enthusiasts' 280 SL engine rebuild. Now they don't actually do this work themselves; like paint work, they subcontract the work out to ... a specialised engine rebuilder who ... charges EUR 5,000 - 6,000 for that very same job ... so the intermediary charges a EUR 9,000 - 10,000 mark-up as their 'brokering fee' (plus the hours to remove the engine and then reinstall it again - maybe they use a lot of that same masking tape in the process, Hauser!). It pays to shop around ...