I work in the transport industry as a supervisor, one of the contracts I control offer a HGV salary of £32kpa for a "4 on/4 off" shift pattern that consists of 12 hours each shift. Although shifts are generally 10 hours, which gives a worked average of around 36-39 hours per week.
I'd personally say that's not bad, however it would be easy to fall into and live off, sapping ambition.
Cheers,
Doyal