No list no set of characteristics and predict motivation because motivation is based on emotion, NOT DATA.If you were a lion in the dry savannah of Africa and you wanted food.

You might see investors / main contractors hauling debre away in their pickup trucks late evenings and sunday... 

If I understand you correctly, they can't even access their food or clothing, so this will be a big impact on them for a period of time.

The only food I have delivered is pizza, and even that is rare.

Andrew, honestly just keep going.You'll be worth 8 figures soon.Not many people love their jobs, but it puts food on the table and you are clearly good at it if you've been doing it so long.Use some extra income to start getting into RE investing.If you get a seller to carry 15% in 2nd position, you just need a 10% down payment.Its tough to do but everything in life takes sacrifice.

Very few succeed with this model and those who do are the contractor types who are driving around in their work truck putting out fires all day.

Save every penny you make, live with room mates, drive a beat up truck, house hack distressed properties and spend all of your spare time DIY rehabbing them.

Residents can pay $1600 for rent and be in nicer areas of Memphis with better food, school, job, and transportation options. 

Take pictures of contractor's trucks you see driving around.

even shipping costs from so cal to nor cal throw most scenarios for modular homes out the window. perhaps based on your experience you can minimize those drastically. 8k a truck load. 3 trips minimum.