Nice job & good catch thinking outside the box per se.We have a local woman who has an seasonal RV/Trailer park & she picked up several of the Amish cottage style sheds rehabbed them & rented them on a daily/weekly basis as 'cabins'.

Then waiting on the Electric company to source a meter box, they can't find one for sale in Texas or anywhere. 

I've purchased properties that have checked every box on your list plus some.

The idea of using Conex boxes was brought up.

I'm just trying to motivate you, to think outside the Box, and get away from MLS for now..

Circuit board equipment (electro-mechanical and electronic vs. mechanical).Aside from the more complicated (expensive) for repairs aspect, there is the surge protection issue to deal with.So with the selection of mechanical controlled Washers, Dryers, Stoves, Refrigerators, ect… on the market dwindling, and getting replaced by circuit board type appliances I was wondering if you are doing anything to protect (your investment in) major electronic appliances from electrical surges.Whole house protectors, surge strips, surge breakers in the box?

The trick will be finding deals in which the numbers, done well, actually work.Will, I just went over yesterday to our MLS offices here in PDX  to pick up 4 new lock box's for Ms.

Figure out the plan of what you are comfortable with and start checking the boxes accordingly.

Just make sure you look thru it first since most of them are either:a) I started out with a box under a bridge and now own half of NY hagiography (aka the Trump story, though Art of the Deal isn't too bad) orb) This is what a C- property in XYZ town looks like and this is what a A+ property in XYZ looks Iike I have material I give to clients if you want to DM me on how the numbers work. 

@Morgan Granger Look for appliance outlet type stores & clearance section of big box stores & sometimes even FB marketplace!