Well i finally got my first full game on Marathon today after finding a light socket that was occasionally shorting out and blowing the light fuse we had lights and away i went.   Found a few little issues like one pop bumper occasionally sticks and a few relays are noise buat apart from that all the scoring and specials all work as they should.   Once i strip it down for the cabinet respray ill rebuild the bottom of the playfield and relays but untill then it will be staying as it is.