This is just a quick update. A few days ago I received my marquee from Game on Grafix and installed it. My marquee installation was pretty easy because I already had plexiglass since it is a conversion cabinet. All I had to do was trim the marquee a bit off the sides and I taped it to the back of the plexiglass. Then, it was just a matter of sliding into place and replacing a few screws.
The cabinet is almost complete! Just waiting on a couple more parts and then done.