Thanks.
I thought my construction details might be helpful for people in my position, i.e. no workshop, not any tools.
So first thing, it's 12"x29"x3/4", I borrowed a jig saw to cut the board down, but that's only because Praktiker could just never cut it to inches (They are German, and only are used to cutting things in centimeters), I'm sure a Home Depot or Lowes would be able to make the cuts for anyone, no problem.
I could not find a proper 1 1/16" hole saw, or a 28 mm, so I used a 1" and a Dremel with a barrel sander attachment, and a 1 1/16 circle drawn around the 1" hole.
I cheated with measuring by making the artwork overlay exact in it's placement, and put a cross in the middle of everywhere I needed a hole drilled. I made sure it was in the correct place by using a standard button template as a layer (attached below), and then hiding it after it wasn't needed anymore.
After the artwork was printed and the board was cut, I used the board as a template and scored the plexi (I did this to keep cracks from running).
I tried to cut the plexi with a jigsaw near an unneeded edge, it cracked.
I tried to score it multiple times really deep and snap it, it cracked.
So I bought a router attachment for my Dremel and a bit, clamped a board arcross it for a guide, and set the router (my tiny dremel in a Frankenstein mount) to about half the depth, and ran it across at 1/4" inch forward, then 1/2" back, over and over again, lowered the router, then did it again. It took forever, but it didn't crack. I then block sanded the edges.
I then took my artwork, aligned it to my board, and stuck thumbtacks deep into each of the crosses. After I removed the tacks and the artwork, I had a whole bunch of holes to drill out my holes, now if I only had the correct sized bit.

I laid out the the joystick mounting plate on the panel, traced it, then set the router/dremel to 1/4" and routed out the material needed to countersink the joysticks. I then mounted the plates.
After grinding all 16 holes to the correct size, I clamped the plexi onto it, and with a very sharp nail, I scored all the button and joystick holes into the plexi.
I tried drilling with a forestner bit, blade bit, normal bit, cordless drill, plug-in drill, and a drill press, it cracked, every time (in the extra stock left over from above). So out came the dremel, I took the metal bit that looks like bunch of Chinese stars stacked on top of each other, and started grinding the middle of each hole at a real low angle. I did this to make the initial hole all the way through. Then I slowly ground away the remaining material. It took about 10 minutes per hole, I did this 16 more times.
I then clamped the artwork between the plexi and wood, and used an exact-o knife to cut out all the holes, put all the buttons in and was done.
This is not the best way to do this, but it was the only way to do it with the tools I had.
I would recommend to anybody ordering buttons for a cabinet, prior to ordering to buttons, or at the same time, buy a 1 1/16" or 28mm drill bit. My life would have been SOOOO much easier with it. I you can find the same that is made to cut plexi, then do it. Plexi costs 27 euro for the correct sheet in Germany, and I did not want to pay 40 dollars for every mistake.
http://groovygamegear.com/webstore/index.php?main_page=product_info&cPath=72&products_id=253I hope this helps somebody, if only by showing that you need to be better prepared. Or by showing that with a Dremel and some duct-tape, you can build anything.
