Hello.
I don't think that a pump from an industrial engine can be cheaper or easier to find.
Are the control collar levers always right for mechanical TDI pumps?
I found a fulcrum lever used for both 12mm and 8mm pumps.
1 461 902 673
0460414001,0460414095,0460416001,0460416003,0460416015,0460416026,0460424010,0460424013,0460424014,0460484009.
That's from a 2005-2006 catalogue and it's the only one exemple.
Then I found another fulcrum lever 1 461 907 793, it's used on the 0460404096 pump accordind 2005-2006 and 2009-2010 catalogues,it's for an IDI engine by Sofim.
Looking for it on web I found it's used on 12mm pump for industrial engines and a 8mm pump used on a 1.9 VW industruial engine used on Multicar.
Maybe low rpms industrial DI engines can use the same levers as high rpms IDI engines.
Are there 10mm mechanical pumps from DI engines? I haven't find one yet. Generally they are 11mm pumps.
I'm going to think that there are no standard parts by Bosch that can be used to build a very good 10mm mechanical pump for a TDI, it takes to modify parts always,doesn't it?