A significant number of BA pilots are non-resident anywhere for tax purposes. That's comfortably workable on any fleet! Their take home pay is very impressive!
Really? And your wife and children are non-resident anywhere too. Not in UK more than 90 days a year for last 5 years? No property owned anywhere in Europe? Where do you live - the M4 ibis?! Where is your pension (obviously no state pension or NI). Employed in UK, based in UK... I know its been done in the past, but can you really plan your next 30 years like this?
Tax evasion is nothing to boast about.