Depends, if the surface was warped or it needed a ton of parts, then no. Do plan on replacing some parts, 2 bar, bumpers, men, pins etc.
1. Not sure
2. Yes, legs, lower cabinet, and tabletop all separate.
3. Yes, you pull out the tray that the balls normally fall into and block the hole on the track that the balls roll into the coin mech on. Sounds complicated but it isn't. You can also rig the coin slot but that adds up to more games on the counter and additional wear and tear on the mechanical parts.