In the great land mass that represents the UK there are not many overseas destinations that lie one and a half hours' commute door to door. There are a few more that fall within your time scale on an airport to airport basis.
If you are searching for a tax base then you really can't surely cast your eyes further afield than the Channel Islands. But your problem here may be the initial very high cost of property. In case you don't know, you would have to buy or rent on what the Donkeys or Les Grenouilles call the 'Open' market. Property protectionism at its most refined!
In any event, if your work base is within the UK, which you omit to state, the likelihood is that HMRC would do you for UK income tax anyway, since, presumably, your salary would be paid there, at your place of habitual employment.
No doubt further details from you would ellicit greater and more authoritative information from others. Does, for instance, the cream long haul job allow you to base in a long haul (from the UK) country and operate from there?
More information = more wonderful advice from the fount of all knowledge who is never wrong even when he is mildly mistaken.
