I'm not saying the prices aren't justified for most people, but for the work involved, it seems too high to me. I do basic car audio stuff myself and for $100 per hour that most local shops want, it's ridiculous. People come to me and most of the time I just do the work and they give me trades or pay me later. I do it for fun. As long as they provide all materials needed. I'm currently looking for someone near me to help me build a box that just does this on the side and isn't trying to make a huge profit. Otherwise, I can build one myself. I just thought you needed a panel saw to get the cuts straight. I mean I've looked up box building. For a simple design, it's very easy to put together. I figured most people would reflect that on their pricing, but no, they want to just make money. I guess most people don't do it for the hobby anymore.