There are 3/4 treadles, but they aren't that common and usually comes with a machine. It's a bit more common to find a 3/4 cabinet for an electrical machine. The motor and lamp on these are usually in good condition, but the wiring often needs replacing. Much the same for the controller, some take the bother to open them and clean each individual carbon disk and put them back in. If you do, do it carefully they are brittle. I like the wooden bases with bent wood top, no need to replace it. I use my 99 regularly, and it's because I had it rewired a few years ago.