I'm probably getting close to $1500 after buying all the tools and parts. Fortunately, I've got enough to make 2 cabs now.
Originally, I had envisioned a few hundred at most. The cost just keeps climbing. I look at it as an education expense though. I've learned a lot about wood working and how to use the various tools.
I suspect, now that I've got the tools and knowledge, it would be a whole heck of a lot cheaper to build a cab now.