Be very careful cz737!
Offshoreing your wages out of the UK without the taxman knowing is illegal unless you have a very creative accountant

and a penchant for gambling with your finances.
The UK taxman has his sights set on pilots and agencies this year to clamp down on this

.
If you want to sleep well steer clear of anyone who claims to be able to pay you offshore - they are sharks playing roulette with your finances (never mind appealing to your avarice).