Yup...that's exactly what I did...
http://ecomodder.com/forum/showthrea...dea-15137.html
The key will be how you connect the pieces together. I found that unless you have a good fastening system on the front and side pieces...it will wobble a lot...and may self-destruct.
My hatch is similar to bondo's commercial setup as I can remove it when I need to put in taller items. I went with a frame and Coroplast sides as I didn't want to put a whole lot of money in the development until I found a good shape/design to work from. I still have to add in more supports in the sides...