Paid cash for the land, and I have started to work with an architect, surveyor and septic designer on the build out.

BiggerPockets is full of resources designed to help you along your journey, whether you are just getting started or a seasoned investor.

If that baseline average is an acceptable figure, then go a few notches up from there with your design and amenities and you should do well. 

Look for the Certified Cost Segregation Professional (CCSP) designation, which indicates certification by the American Society of Cost Segregation Professionals (ASCSP).

As for your tiny home photo, I'm simply not a fan of that design.

Then if you are only looking for cosmetic flips then you limit your targets and increase competition because every wannabe HGTV, realtor, interior designer, contractor, handyman is looking for the same easy flip.Its doable but lots of strategy and organization, hustle. 

I return to the site regularly for easy access to state statutes and new features that are added.

Mitch - A Good Strategy however; Can an ENTITY (your corporation) be designated as AIF - Attorney in Fact for INDIVIDUAL borrowers who's loan is being paid off?

We (I work at Azibo, just a disclaimer) have quite robust accounting capabilities and time saving features like Schedule E generation and automated  transaction tagging rules.

In contrast, STRs work this way intentionally, by design.