1. BARP the new plan, not all the salary is pensionable, works out to around 12% of gross.
2. Yes but probably best to be LHR based for that which means bus not boeing. Expect to spend a few nights in hotels at your expense (£35 pn)
3. No, low 40s but expenses good, up to £1k after tax for a heavy month.
4. I'll leave that first part for another, the time off - very locked in, roster stability is all.