Thank you for your reply Fl1ing Frog.
I am aware of GR 24, thanks, but did not know that an engine "on condition" could not be imported. Is that what you are saying? All AD's yes, expected, and yes Export CofA can be obtained easily from the Germans.
I was rather hoping to receive information about after arriving in the UK and registered here regarding who can present the aircraft to the CAA for survey (if indeed required), and whether this can simply be an A+C licensed engineer, and what level of inspection (ie annual) needs to be carried ou. Accept that all Form 1's for engine OH, prop, and parts installed will be required. What about work packs for inspections carried out in Germany, and translations??
Thanks again Frog for your response. More welcomed from licensed engineers please if poss.