I'd look into some 0% APR for the first 18 months Credit Cards but it sounds like the amount of money you're looking for is too small for most hard money lenders to want to get involved with.  

If you are local to your list, start by door knocking, and rather than trying to do any business with them, offer them something like a $100 gift card for 30 minutes of their time.

Neither have a mortgage, owned free and clear-No high credit card balances-Credit score - TransUnion as of 7/29/18 - is 796We haven't decided if we will sell the townhouse or keep it and rent it out.

I paid - $2,226.54 in credit card processing fees. 

Anyone have a card that does more than 1 year extra as my Cap1 Business card does? 

Your best option for the remainder of the renovation costs may be credit cards (assuming you're comfortable with that), and of course friends / family / partner, 401k loan, etc.   

You are basically taking out a loan for personal use, just as you would spend money out of the credit card to buy a food. 

You may need to open a credit card or two to finish it up.

And we live in a area where there are so many small businesses make some flyers and ask to hang them or leave business cards!

Your final considerations are Credit Cards or a HELOC but do their benefits carefully and pay them off in time.