There is an upcoming Wayne county auction where guru has developed a program to pick out the golden nugget properties based on zestimates (not super accurate), starting bids, zrentals, and up and coming areas.  

You should be able to get a fairly accurate estimation of what repairs will cost in this case (like someone else pointed out - add 10-20% to this amount).

All flippers really should take the time to learn how to accurately budget for a flip.

If your asking for a more accurate ARV?

We also saw a avoidance of wood frame homes due to the fear of them being weaker in storms, accurate or not fear is a strong factor.We also saw a boost to the market as a whole with the increase in spending and increase in work from insurance claims.

The article says 20 bids and the winning one "wasn't an outlier," so we have good reason to believe the sales price is ballpark accurately telling us true market value for the home, without even having run comps.Really, what's more likely at play here, is a listing agent that wants to be able to juice up his "average % over asking" pitch a little bit more for future listing presentations.

I agree with others but your scenario needs more data before someone can give you specific answers and accurate guidance.  

I don't think your numbers are accurate at all....

What this exercise might find is:- Contractors willing to communicate and go through formalities of estimating- How hungry the contractor is for work- Which contractors answer your exercise most professionally - Which contractors go above & beyond with thier answers and their own past example work/portfolio- Which contractors accurately estimate material and/or laborOf course if they don't or won't reply, it could also mean they are too good and busy to jump through your hoops -- so they could be great contractors as well. 

But, I think you can find an accurate rent using Cl or Rentometer is also a great way to find your rents.