I think the going rate for FAA A&P / B747 at Prestwick is approx
£17-£19 (taxed) per hour. It isn't great when compared to Part 66 B2 A340-600 £35 (untaxed) per hour + accommodation/flights included...
I can't fully comment on whats happening in the US right now but
over the last few years, there have been large redundancies/furloughing of AMTs within the larger airlines as maintenance is pushed overseas, eg: United Airline's B777s in China, where it is simply cheaper.
Line maintenance positions are rare but possible in the UK. American Airlines being quite good if I recall. Equivalent to B1 or B2 at least...
BAe146??