Sorry to hear you will need to sell so much stuff over the coming months... First thing I'd say is figure out which shipping carrier you want to offer to potential buyers of the pinball and arcade units. If you can find something that is easy for you and fair in price and speed for everyone else, it should be smooth sailing when you start listing.
Not that its really needed, but incase anyone is weary about buying something expensive here, I'd vouch for Chupon as we have BST'd together several times and it has always been a pleasant experience.