This is my current set up.
This set up is 7 foot to the top of the screen, and 2 foot 4 wide, with a 55" curved 4k screen, and stereo speakers either side.
On the side I have 3 key switches.
Top one turns on the little green note changer - put a note in and get 10 coins from hopper 1. (uses a hacked kids money box and 2 timer relays)
The one on the left runs power to hopper 1 (if you need to unjam it). (rarely used)
The middle key is a double pole 3 way switch, that swops hopper 1 & opto with hopper 2 & opto. (A few games use hopper 2 as the main hopper)
The button box includes the Pacdrive and Ipac, and has a few extra buttons too. Including side buttons for MPU2 or pinball.
On the back is a button for Full screen (F3), Escape, Random (F6) and a toggle switch for voume +/-
And finally the change machine next to the cabinet. This uses a JY-142 board for change, and a Arduino Leonardo board for MFME credit.
in switch position 1, it gives standard change, and also acts as hopper 3, in Triac output mode only.
In switch position 2, it gives credit on MFME for various notes.
The coin slot on the front acts as a normal coin input or refill.
My next plan is to use a bigger cabinet with 4 hoppers in it, and a note acceptor. Maybe I will start that later this year? I already have most of the stuff I need, but am waiting to move to a bigger place.