I wanted to take a moment to introduce myself here on BiggerPockets.

As another poster mentioned rates are lower than they've been in the previous 18+ months but unless some very surprising economic data comes out between now and when you did your refi it seems unlikely that rates are going up in the short term and there is at least a decent chance that rates drop a little more before then. 

That'll help you figure out what direction to aim in before speaking with a bank to figure out how much you can qualify for. 

Hope you find useful information.

It also features a minisplit HVAC system and PVC exterior covering.We plan to market it as a vacation rental, given its potential appeal to eco-conscious travelers and those looking for a distinctive getaway experience.I’m reaching out to see if anyone has experience with selling or financing geodesic domes.

Sept is seasonally slow here in South FLL.

This is more for residential stuff here.

Can we DSCR out of this to get our money back out or will I need to sell it to get our $136k total investment out?

If you want to run few scenarios reach out. 

Even though there is low inventory, interest rates are high, and many properties don't cash flow, look harder there are always deals, you just need to find/make them.