Another update: we'll stick to the Sunday plan for the LH Technik tour, to take the stress out. Also it looks like the tour cost will be picked up by LH. ^ Stay tuned!
For Saturdays Airbus tour I'm looking at chartering the bus (which we have for the tour inside the plant) to pick us up in downtown Hamburg, since getting to XFW with public transport will be time consuming. This will bump up the cost a bit, but not by much (90€ more for the group).
We still have spots on the Airbus tour, please tell anyone who could possibly be interested so we leverage the cost for each participant.@:-)