Hi Rohn007,
Thanks for the great post & suggestions.
I have the same issue with Office Home & Business 2016 not allowing Publisher 2013 to install.
I spoke to MS Account & Billing & eventually they emailed a link to the free Publisher 2016.
I follow the wizard, select Country & Language but it then says "For some reason, we can't activate your subscription".
They have spent hours trying to resolve this (including remote connection to my computer) but still don't have an answer.
I think the issue might be that Publisher 2013 doesn't show up in my account.
If I go through https://setup.office.com/ that you mention it accepts my 2013 product key but wants me to download & activate (which of course it wont do).
I tried installing Publisher onto a different computer through this link so I could activate but it still doesn't show up in my account.
After spending many hours on the phone getting passed around to dozens of people (who keep just trying the same thing!) & I'm hoping you can help me or offer some suggestions.
Thanks, Gary.