Back in Feb of '16, I had the delightful problem of not being able to find anyone who wanted to loan on a '02 Winnebago in Mesa, where there are hundreds of dealers and consignment lots. I have a credit rating of 783 too, but no takers.
Since I no longer own a S&B home, have no real property to speak of so couldn't get an equity loan either. Eventually gave up, and withdrew the entire amount from my retirement funds. What I should have done is used my two credit cards and almost maxed them out. Could have paid those off with a few hundred per month each if I'd thought of it. That would have reduced my withdrawal. Reason was the amount I took out pushed me into a higher tax bracket and I ended up paying $6800 in taxes that year when usually it would be no more than a couple hundred, if anything.
So my advice is to nearly max out your CCs and withdraw the rest from your retirement funds. Or get a loan from a relation.