Rents are currently running about $1550Considering probate time, yada yada... am thinking of brrrr'ing this property using 401k funds, and for now to look for a ready to occupy primary home.If I brrrr this house using funds from 401k will there be enough equity to fully extract the 40k and repay the loan?

The right lender will be able to guilds you on how to extract funds for the purchase so that the paper trail is clean for your re-fi.

With a BRRRR, I typically have all or virtually all my investment extracted in less than 1 year.  

Unfortunately, it doesn’t cover all major markets yet, so I’ll probably end up writing my own python script to extract the estimated mortgage and rent directly from Zillow using their API: https://www.zillow.com/howto/a...

I just need some advice from bp members want to ask some questions, my name is rosendo and investing in buy and hold in Lexington ky area I stop working right now because I got disabled i have problems with my legs p...

However, in your case the fees are so high compared to the extract that I recommend at least looking into the HELOC. 

Would you let that goldmine to to someone else, or would you figure out a way to put a deal together to extract the gold from it?

The 140K ARV home could be ideally suited for you to owner occupy, fix up around you, cash refi extract when done.  

I realize that may not directly advance you towards your goal, but it would recapitalize you, eliminate the OO concern and allow you to extract whatever value the ADU may have added. 

Guess one thing people aren't discussing is how they extract cash out of their SDIRAs to pay for living expenses or do they just leave rent/ cash flow there and take dividends or pay a salary?