HVAC Estimate for a SFR, 4Br/2Ba, 1250 sq ft in Alabama

[Shawn Costley]

Good evening!  I'm attempting to try and get a quick and dirty estimate to install an HVAC into a home described above.  I'm using the BP calculator and went to ensure I've got a reasonable estimate on my costs.  I'll physically see the home tomorrow, but  based on the photos, there are no vents or duct work, just a few A/C units.  I'm going to assume for calculation purposes that a full install will be required.

This is a rent ready property.  Former tenants were using A/C window units.

I'll be seeking some estimates/bids in from contractors at the beginning of the week, but wanted an idea of what to expect cost wise as well as the see if there is a good rule of thumb to keep in mind when looking at future investment opportunities.