These links might help.
Flight plans of the Somewhere Back in Time World Tour legs:
https://flightsim.to/file/13516/iron-maiden-somewhere-back-in-time-world-tour-2008-09
Book of Souls World Tour 747 livery:
https://www.projectmegapack.com/liveries/
Salty 747 mod (to improve the default 747):
https://github.com/saltysimulations/salty-747