If I finance the rebuild then the 1031 exchange presents some challenges (I will need to land a property that cash flows or breakeven so that I can get the loan for my rebuild, or banks will count that debt against me).

Your 3% rate likely helps you with cheap debt and without the need to chase high that normal rental rates.

I used a LOC to build a 12 site RV park in a small town, opened it up and 1.5 mnths later, I'm full occupancy and servicing the debt (some of it at 8.75%) & cash flowing.

Consolidate your Texas Series LLC to own and manage your Texas LTRs and STR, eliminating the need for the Wyoming LLC and C-Corp unless specific anonymity or tax advantages justify their costs.

You can refinance it into a conventional loan and that helps avoid the higher down payment.FHA also offers more wiggle room when it comes to DTI debt to income ratios and reserves requirements. 

For me I have 3 main goals I am shooting for:1) Pay back the debt I acquired purchasing rentals this year. 

If you do you may run the risk of piercing the corporate veil of your LLCs making you personally liable for business debts. 

You are required to disclose that debt, and it will be a fairly easy catch for an underwriter, even if it's not on your credit report. 

Bob arranges the money for Joe, so the bank is short again even though Bob could have paid more on the debt.

More importantly, get the high interest rate debt paid off first.