I am working on a 8086 emulator with limited DOS support.
Anyone interested can find the source and executables on my github:
https://github.com/PeterSwinkels/8086-Emulator
This Vogons(DOSBox) forum thread has some screen captures showing it in action:
https://www.vogons.org/viewtopic.php?p=1374862#p1374862
Feedback is always welcome. Thank you.