Yes, I went to the shop to source the material and they offered to cut it. You need a1/2 inch thickness, the box has a template you can use for the inner cutout, and use the oem speaker for the outter template by turning it upside down and draw the outline. I replaced the oem nuts with spring similar to this:spring nuts
I am out of town, i can get part number I used next week..
As far as alignment, I had one screw from the template line up with the spring nut, the other four i mounted the mid divers not centered but offset higher to give the magnet more room (although not necessary)
Keep me posted!