On the web there are many instructions for repair of Dysonsauger and so I had the idea to try it for 30 also. What can I say, it was a breeze and the new engine sits.
I can only say to the engine itself, it has the same number of prints as the original - fits, and is in other models from other manufacturers (eg from LG) also installed.
The sucker runs after repair any problems for over a year.