With plenty money, do it all in the UK. if money is an issue, why not look at other places in Europe or beyond? Do a cheap ICAO PPL, you will loose it if it is JAR once you upgrade to CPL.
The hour building before the CPL will get you back to speed before the CPL, which can be done in Turkey (under German JAA, they do Xcountries to Beirut, Cyprus, Tel Aviv...
), in Croatia (Lufthansa), plenty places in the Czech Republic, and all these places do the ATPL groundschool and flight instruction in English.
Plenty JAR places in Slovenia, Italy (newest member with mutual recognition), Spain..............
And at the end you get a JAR fATPL. If, after all that you still want a UK JAR licence, those chaps will be happy to take a few hundred quid.