A bit of Window Mod help?

Alright, so i'm looking to get one of these windows from this site,

<A HREF="http://koolpcmods.com/home.htm" target="_new">http://koolpcmods.com/home.htm</A>

and put it on my already modded window that came with my chieftec case. It looks like there are a couple shapes you can get for the acrylic, but unfortunately, after looking at my window, I realized it doesn't match up with either the Antec window nor the Chieftec window. Which is wierd, because I have a chieftec steel case, its the black dragon one, with the front door and 2 removable HDD bays.

The problem here is, the space cut out of the steel is roughly big enough for a 9x12 rectangle, with a cutout for the door handle on the left side. However, the windows on the website I want to get it from are more like 9x15 rectangle, taller towards the top. I could probably get a picture of it, but our digital camera isn't great quality. I need to find some way to cut off about a section of steel, about 3x9 from the upper part of the side panel. Any ideas of tools to use?

Instead of Rdram, why not just merge 4 Sdram channels...