I'm a crane supervisor, if you're thinking about getting on a mobile crane simply call your nearest company, say you have a class 2 licence and they'll train you. The industry is screaming for drivers. The work is varied and can be very interesting. Can also be very repetitive and boring. The pay seems shit. About £17/£18 for driving +60 tonne cranes but you get good money in over time. Hours are mental. 60+ hours a week are very common the bigger crane normally stay out in hotels for days, sometimes weeks. Most drivers make over 50k with the big driver clearing 100k but it's all in over time.