Comment by kelnos

~25 years ago I injured my right (dominant) hand and wasn't able to type with it for about 2.5 months. I figured the time was short enough that I would just use a regular keyboard, one handed, and live with the slowdown.

It was annoying, certainly, and while I did get faster typing only with my left hand, I of course never got close to full speed. But it was fine, I survived, and I don't think it would have been worth spending the money, as well as the time to learn a new keyboard setup.

Remember that a one-handed keyboard (or some other arrangement) isn't going to bring you back up to full speed immediately. It's probably going to take a few weeks to learn, and you might not even get back up to full speed at all.