Fantastic choice for a first EM. Drop Target "Heaven" !
You will find that repairing and maintaining EMs is really just a case of common sense and logic. Sometimes, after almost finishing a repair, you will find that playing the game will fix that final issue. Most of the playfield parts can be purchased from PBR - Drop Targets and I think the plastic Set. Keep the playfield clean and waxed and you will have a lot of fun with this game.
