Hi Wayne!
In this case, please do this to avoid Microsoft sign-in at installation flow. When you reach that step, disconnect your PC from the Internet, press Shift + F10 and run:
oobe\bypassnro
Your PC will reboot, do not connect the Internet yet. Then, keep going until you find the same window, and press "I don't have Internet". This way you will be able to create a local account, and after that you will be able to link your work/school account from Settings.
I hope this helps!