@utri007 not sure what needs to be done with startup sequence, I used your settings with replaced files, it boots to WB, but no CD0 device is shown, nor you cannot access it from the shell.
When you enable extended rom it goes back to 8000000B.
What is it you want me to try with the loadmodule? And please explain, is the goal here to let it boot from extended rom, unload it and replace with the extracted ones? What is the method here and why?
https://imgur.com/a/IMKafSB