those fifteen hours would cost around 1500 in at rvs compared to almost 4500 here!
Problem is though, you have to deal with all the TSA hassles and buy tickets and pay for accomodation, get checked out by an instructor (not P1 time) and will they let you solo the aircraft IFR? I doubt it! It's hard to see how anyone who has trained in the UK from the word go can get the required numbers together for single pilot IFR.