Thanks for all the help guys, sorry for the late reply, been hibanating all winter and now car season is coming back around i need to pull my finger out!!

I see a few people in P-VW using the Mocal oil coolers, you can pick them up off ebay for about £120, are they decent for the job?
Also the rad come in 2 sizes is bigger, better?? also where does the radiator sit, behind the intercooler?
Cheers again for any tips and advice?