Correct but I found that using the Rasberry Pi 3 was difficult to configure and use screen flip mode also the Raspberry Pi uses HDMI and most cheap monitors you can find on Craigslist or a thrift store use the old VGA connectors and the HDMI to VGA with the little 3.5mm speaker output are at best iffy. I tried to get it all working for quite a while before I threw up my hands and bought this thing from Amazon: https://www.amazon.com/Arrival-Classical-upgrade-Arcade-Machine/dp/B0103X7KXS Although many of the games are duplicates or require an 8 way joystick or a roller ball like Centipede. So by the time you turn off all of the games you don't like or are not really compatible with a cocktail game (no screen flip etc), you might as well get this board which is actually better. https://www.amazon.com/Easyget-Classical-Arcade-TV-Plug-Play/dp/B01L1UT0R6 You just need to buy little stand offs to keep elevated so air can flow around it. You can get the stand offs and the power supply you need and the harness by getting a kit like this https://www.amazon.com/Classic-Multigame-Multicade-cocktail-control/dp/B00F1YQ9LO but I bought extra buttons (illuminated kind) and a blue knob so that player one is red and player 2 is blue.

But yes, if you are thrifty the build cost is at about $500.00

Glass: I found a lady selling two glass top end tables on craigslist for $50.00 so $25.00 worth of glass

Monitor: I found a guy selling used LCD monitors. I paid $25.00 and I regret it. I walked into a goodwill just to see what they had and they have a bunch of old LCD monitors for $5.00. I used a 19" Dell but a 17" would actually fit the bezels better.

For the wine barrel again Craigslist. There are quite a few people that get them from wineries and resell them. $75.00 - $125 is common. I paid $100.00 because I got to pick the best one he had. You want a fresh one that still smells like wine and hasn't been sitting outside in the elements for months.

For the control box I used MDF. I had the guy at home depot do the rough cuts for me for 25cents per cut because I have tools to do the finish work. If you don't you could plan it all out and have him do all the cuts for you. :)

MDF was about $50

The artwork was the expensive part. The printing for the bezel was about $100.00 and the vinyl graphics from ebay that I used for the control panels were about $75.00.

I also bought a switched power receptical so I could plug it into the wall and have a switch to turn the arcade on and off. Also a cheap power strip hot glued to the inside of the barrel for the monitor and computer power supply. I found some old computer speakers that I ran in series to make them 8 ohm and connected them directly to the computer box. Put them wherever you feel you need to but keep in mind these old games don't need the best sound quality and you can hear them plenty loud under the bezel and glass. You don't need them in the front panel facing the player.

That's pretty much it.