Keith, I can tell you that I have looked around for several years now, I have learned to tell green grass from grass that is painted green, there is a lot of the latter and not much of the former.
Going sideways,(doing the same thing somwhere else) is not very attractive unless it is an improvement in the environment that you are doing it in. Every employer wants to get the most bang for their buck so they maximise what they can get out of you, I don't care if it is in Mumbai, Luton or Nigeria.
My recipe for survival; find somewhere reasonable (according to your requirements) stay and accumulate some seniority, find other business activities that bring in some cash and can be done whilst you're exersicing the privileges of your Pilots licence. Invest visely and design an exit strategy before you go crazy.