The suites on the 77W are superb for sleeping, last trip I completely slept through breakfast, you will love them, although the "new" First which is just about due out would be the way to go in my opinion. The next European trip I have booked is for Fra, I am betting they will have the new refurbished 747 one way and the A380 the other. If it all falls in a heap, and I miss out, my favourite seat is in the nose of a 747, so it is a win/win for me. Back to your booking, I would swap Fra for Muc, otherwise transit through CDG. There is always a chance with every airline that the aircraft you thought was going to fly the route may be swapped, but with Europe you are safe, because you know or can easily find out what flew over from Bangkok, so if you don't like the plane, catch the next one.