Thanks so far guys, if the deal does not come off with my friends purchase I think I might just do it in mine now my taste buds are wetted and make it more leisurely and able to divert etc without the pressure of having to get there.
10540 - some good advice and thanks for pm
B2N2 - Good idea
SR Man - Thanks for offer
Still feel if the Alps route would need some hands on training & guidance or go with an experienced person.
Still would like to know what permission at Greek, Turkish airport's is required in advance?