One thing you should know is that it might look a bit different than what youre invisioning. I tried making a cover from diamond plate based on that same shape and it shows a little too much of the frame and swingarm bolt, its kinda funny looking...to me i guess but if you look at this pic of my bike with the t100 cover on it you'll see it has a little piece that bumps out to cover the swingarm bolt, so it shows more but still covers a couple of ugly parts.
also if you have a speedmaster with the blacked out engine be aware that you'll see the bare metal of the side of the engine from where the previous stock cover, covered.