If you're more conservative, you might want to increase your fixed income allocation.Income needs: If you plan to live off your investments in retirement, ensure your portfolio generates sufficient income to cover your expenses.Remember, this is a general guideline.

No amount of YT or self-work books can get anyone to our level.

If you don't have the liquidity to purchase the property your other option is to finance the acquisition but how do you obtain financing when you can't even show sufficient down payment funds/liquidity on your PFS?

That is sufficient to handle normal usage, regardless of the brand of paper used. 

When I was self-managing, I used Guesty for Hosts ($528 per year or $44/month).

if self managing this is work.Note there are other RE options other than residential RE.  

The lender assesses whether the rental income is sufficient to cover the loan payments.

Unless you have extensive time and experience managing Section 8 rentals, it is not advisable to self-manage them.Did they send you pictures of the holes in the floor?

I'm unsure of whether I'd self manage or not.Any advice and starting a general discussion on the area would be great!

This would come from any past employer 401k plans you might have that you can rollover to your self-directed Solo401k and utilize for investments.