You can only get your experience at a EASA part 145 approved maintenance facility.
Your type course certificate must state EASA Part 147 approved and state pass not attended.
Also your practical must be part 147 approved.
Most people buy complete packages from part 147 training schools.
The UKCAA has tightened up on all this and the paperwork is almost forensically examined. the easy ride days are gone.
I cannot speak for other NAAs but the recent fraud case in Greece at a PART 147 school and suspension of all Basic module certificates covering several years and ergo licenses will be far reaching.
You maybe better off asking in the engineering section of this site... also airmech.co.uk 400hertz on that site is a legend on the training regs.
I hope the mods dont mind me advising another site