I'm going to start building my footswitch this week. I was possibly thinking about building a few if people were interested. So far as a rough estimate, it's cost me about $80 USD in parts. I'm sure I could find cheaper online, but I've been buying all of my parts locally from a single place. Plus I'm using a different Hammond enclosure compared to the one in the DIY. I am using the 1590DD because it's wider and easier for my 13in feet to switch. Haha. Also, I picked the unpainted one so I could paint it a different color than black.