Gentlemen, sorry for answering so late but I was on vacation *8)
Hello Achim
The picture of the seat is from Alb 5414.
There is also a very good image from the Boeing study.
Hi Dave
This is fantastic *

Far beyond my expectations, I thank you very much for all the details, The "engine"
should be flying again sometimes within the next two years , experience tought *me not to be over optimistic *
I will let you know when the Sept update will be online
Regards
Alain