Ah. You will also like another story that popped up here some time back.
A Canadian science-fiction writer, Robert J. Sawyer, made an Archive available complete with extensive resources on how to use it. In addition, fully text-searchable PDFs of the original manuals, totaling over 1,000 pages, were also available. He is a dedicated WordStar user.
And my USB-DOS project includes it, for a complete environment you can boot and run direct from USB, without installation, on any PC which supports legacy boot.
https://github.com/lproven/usb-dos