From the few Youtube videos i have watched, they compile a list of real estate, like absent owners, or foreclosures, or homes that have code violations.

You would simply need to choose an administrator or custodian to have your SDIRA with, bigger pockets has compiled a list available here.

I need some insight on the steps from concept to the financial proposal to a lender, I understand that I need to compile together a complete cost of construction analysis etc. but what about visual concepts?

You can begin with one quickly place a renter, compile a group of 5 to 10 props, and sale off as a small business portfolio.

I compiled a bunch of helpful books that I'm currently reading through which might be helpful to you. 

Since I doubt Air/VRBO have any interest in compiling a list of states putting a hold on their core business, thought it might be good to break things out here. 

Similar to hiring an attorney, you're not necessarily paying her for the 30 minutes it took her to compile a boiler plate contract.

I’ve compiled this list with what I’ve found to be deductible and what might be.

Account Closed, I had a very similar thought when I was compiling the list of possibilities. 

Please also share your research with us once you've compiled all the data!