I agree with Benny71? If you think you have it tough with CASA and the fees etc that they charge then don't even contemplate dealing with the CAA in UK! They aren't known as the 'Campaign Against Aviation' for nothing. Their fees are exhorbitent and the regulations draconian in places making it impossible for those with a family and mortgage to move on. As I understand it you can fly as a co-pilot on a 'twin' in Oz with just the IREX under your belt, here in the UK you have to have successfully completed the IR exams (if you've left it too long since sitting the same exams for your initial licence issue, can't remember radio and radar theory etc changing since then so why sit them again?) which will set you back about $AU2,500 for a correspondence course and a further $AU900 for the exams before you have to undertake the IR course at a cost of around $AU75,000. The only chance most have of getting an IR is to seek employment with the major offshore boys and work for them until the bond is repaid.