So I would have to do 20% down Dscr loan, pushing us again out of the budget. 

When looking for options for something pre-fab to plop on our lot, we keep seeing things about Amazon homes and they seem super affordable, but I don't see a ton of information on them and how to plan for the house arriving.

He states a loan amount of $60,000.

Also the new owner has the advantage of screening their own tenants and signing leases at or above market rents.

I can see that point.

You'll have to understand most of these investors are going to counteroffer.

Just a few additional words of encouragement.

If not, there's no point in going further. 

Your last picture is of a towel bar.

These look like landlord issues and she is doing the right thing by reporting them to you right away so they can get taken care of.