I did this for a few months when working at home. I bought a used treadmill for $100, and built a desk on top of it using spare parts and material I had lying a

I did this for a few months when working at home. I bought a used treadmill for $100, and built a desk on top of it using spare parts and material I had lying around. It went pretty well, as I was writing code all day, but sometimes I would still need to stand still or sit when doing something like writing. For what you're doing, you should be fine. Before spending a lot of money, try out something cheap like a used treadmill and building your desk. If you love it and want something even more convenient, then you may feel more confident about spending more money on it. If you don't like it, well, you found out and didn't have to spend a lot of money! Edit: All I did was take the top of an old desk I no longer used and taped it to the top of the desk where the handles are. It wasn't very professional looking, but I didn't care. If you're working in an office, it may be more challenging, as a normal treadmill probably makes more noise than an "official" walking treadmill built for an office. But if you can, still try it out the cheap way first!