Hey Nino, can I offer you a tip before you put all your ramps on; the left and right 'free kick' kickouts use a piece of metal bent up at a 45 deg angle, these constantly came loose after my restoration, and really started pissing me off.  They are a real pain to tighten back up when the ramps are covering them, they would come loose after a few games and I would have ended up with damaged plastics if I hadnt used protectors.

To solve the problem, I ended up drilling right through the PF and installing long bolts and locknuts, haven't had a problem since.

I know the thought of drilling through the PF is not the best, but when they loosen off and a ball hits them they deflect off and start rubbing the artwork off the plastics above them.  My original plastic had a big crater from where it had been happening over the years.