Very interesting thread, thanks OP.
I've heard of some groups of Irish Travellers offering tarmac-ing driveways and that kind of work over here in Germany and I think France too I was surprised as I wondered how they managed with the languages and so on, I thought you wouldn't pick up much if you are only in one place for a short time. Do you know anyone who spends a lot of time in Europe and do they speak the languages or not really need to?
Also do you have an Irish or British passport? Just interested :)