Go down to the framing department of a local craft store. Many of them would carry ready-made "shadow-box" frames that range from 2" to 3" deep for only $20 to $30. More expensive than the $8 in raw material, but you don't have to build it yourself. Plus, these frames come finished and have picture frame quality mitred corner joints. All these shadow boxes have an inner lip to allow you to mount the top plate from the bottom up, giving a very finished look. Add a couple of pieces of metal plates for $5 and you've got yourself a nice looking chassis.

The drawback of using these frames is that it's already assemble, so it's very difficult to thin out the front and rear panel to install connectors. Connectors will have to be installed on top plate Bottlehead style.

I've never tried this approach myself but think it's a very good option if you have no interest in woodworking. For myself, I going to keep making my own mediocre chassis with the hope that one of these days, I become good at it.

Gar.