I'd like to own a Prowler 2. Here is some additional information on it from Dave Tate: The Prowler. However, I don't particularly want to spend $500 on one. I feel like one can be built for a lesser cost.
I did a little bit of searching around the internet and I found some ideas in this thread.
Here's also a picture from another person that made one:
Anyone have any ideas or fabrication tips?