It is currently running NetBSD 10.0 very slowly.

Get MS-DOS 7.1 (pulled from Windows 98 installs) - https://winworldpc.com/product/ms-dos/7x or at https://archive.org/details/dos71cd or https://www.syschat.com/download59.html

It seems that the CDU version is the best. I think we need to burn this to a cd and it can boot from there.

This are instructions that I can get to: https://devonhubner.org/MS-DOS_7.1/

Here are some instructions: http://keshavsps.blogspot.com/2018/01/ms-dos-installation.html

Another potential way: https://download.cnet.com/dos-on-usb/3000-2094_4-10795476.html

This is about how to get USB on DOS - https://www.classic-computers.org.nz/blog/2018-02-05-USB-in-MS-DOS-and-Win98.htm

Some software for outlining in Linux: https://opensource.com/article/18/1/treeline