I assume it has sewer/septic, water and electric and they 2 tiny homes are plumbed/wired?

The cost of plumbing, drywall, electrical, roof, etc. is the same cost whether you build in Beverly Hills or in Pacoima.

Stay away from electric heating - this is a tip for all investing to be honest. 6.

He knows how to do almost everything, but due to his pace I use him for mainly handyman work(toilets, fixtures, tuckpoint, wood work, switches/covers, etc) He has done minor HVAC and electrical for me as well, but..

Or, from a business perspective, much better to use that time and energy to create a STR management business instead of arbitraging.  

Keep up the great energy.

In the 80's the electrical grid from Oregon to Mexico went down, and it was chaos for a few hours.

I plan on taking some introductory classes for plumbing + electrical + carpentry + ???

Thanks for your time and energy. 

Electric baseboard is expensive and takes a while to warm up so on and off doesn't work.