Less known, but very intesting for your vintage PC: PTS-DOS 2000 (derived from simplephpblog file blog\content\16\06\entry160619-170000.txt)
I've added a static page for my web site z80.eu, see http://www.z80.eu/ptsdos.html
The PTS-DOS 2000 would be an ideal base for your vintage PC, has additional commands compared to MS-DOS 6.22, is much faster, and some features you will love (e.g. DEBUG command looks much more usable). The DEMO of PTS-DOS 2000 can be patched easily, so there is also no time delay anymore. It has a GUI which is much better than DOS Shell, and can be used instead of Norton Commander.

Check it out.
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