Allright! Today I got the good news I was hoping for, the school agreed to let me buy blockhours and stay on the J1 until I've acquired 150 hours.
So, my plan is now to get the 150 hours I need before 18. of december, go home for christmas, and then enroll on an ATPL course in UK come 2010. BTW school blockhour rate is $148 incl. fuel surcharge, so I'll be spending somewhere around $13.000 getting the hours done here.