I own a 605 injection pump de-aereator factory cut away, it is extremely well done, so well done in fact that even the gaskets are neatly cut, I also own its brother off the same pump and that is the boost capsule, equally well done, unfortunately I missed buying the fuel pump that went with it so after all these years they got split up. I have seen quite a few 605 fuel pump cutaways and also instrument cut aways but don’t own any, I have a picture though taken at a fliegerschule in 39 or early 40’s and it shows a table with numerous instrument cutaways on it. Unfortunately i’m half way round the world at the moment and don’t have any access to them to post photos, sorry!