Malc4d
Just a quick Caveat on this, if you don't hold at least a JAA CPL you cannot get paid for the instruction, if you want get paid you need to go outside the UK FIR otherwise it is construed as aerial work and you can get prosecuted for this. Also you cannot instruct with a FAA only IR in controlled airspace which makes it difficult to do the IR x/country. Don’t take the attitude that “he’s a mate we’ll do this 'sub rosa'" – these arrangements have a habit of going pear-shaped as Dennis Kenyon will tell you and you could find yourself in court and being seriously out of pocket.
Stick to the rules and procedures and you’ll not get hurt.
Porridge