I was a little shocked to read that you needed 40K, hence thats why I started this thread. I have reckoned it up to be:
PPL 4K
IMC 2K
Night quali = £700
Hour building in States plus expenses = 5K
ATPL exams d/l + CAA fee = 3K
CPL skills test 5K
Twin rating = £1500
IR = 10K
MCC = 2K
Any other extras= 2K
Total= 31K
This is a long way off 40K!