I too love the Rand Editor, which I have been using since the early 1980's. I'm an old fart and my fingers just can't learn anything else and I hate the inefficiency of using the mouse. I just came across your work while searching "Rand Editor", which I sometimes do in the hopes of finding at least one other person still using it.
Are you aware that sources still exist for it? I got my copy from a guy at CERN quite a few years ago. I believe that Rand has abandoned them so I see no problem giving you a copy if you would like. I recently ported it to a current Ubuntu system, where I use it regularly.
An open, cross-platform journaling program.
A scientific plotting package.