So after a few hours in sketchup. I came up with this.
Inside the rad stand. You can see where the Rads go.
Outside the rad stand. Here you can see where the fan holes need to go.
I actually think I may be able to just cut the openings by hand and then just use some modders mesh to cover the holes. That will be way cheaper in the long run as I won't have to ship the plexi out and pay for a laser cutter and I can do it in 1 big piece.
More to come.