"Should I buy now, interest rates are so high...I don't want to househack in a dirty duplex with a stranger, oh whatever shall I do, wherever shall I go? 

The investment is very risky, especially given that Paraguay's credit rating is junk and (even for lending to the government) so investing  there would be reckless for most investors any you would have to make that very clear, possibly in contradiction with your pitch deck.2.

Here in Texas eviction rates are less than 1%.

MY PLAN: My plan was always to refinance the mortgage when rates dropped in the future, so my hope is that my mortgage would eventually come down to around $1,500-1,550 which then makes my numbers closer, as rental prices increase over time.

As you know the rates in Florida are out of control.

When we did it, rates and prices were low enough (and rents were high enough) to still be in a cash flow positive position despite the higher mortgages. 

First, I would raise the rent slightly higher than market rate and see if the smoker stays.

Cash flow will increase when/if rates drop.2.

Check their nightly rates, occupancy and amenities.

Why sell if your rate on the house is good and you could have two cash-flowing rentals there, the main unit and the basement unit?