@Dustin Cook nailed it.

Now each trip to Home Depot, for small items like a box of nails, next trip to get some glue, each one of those gets one line (not every item per receipt), one foreman goes 3-5 trips a day, each crew has 1 foreman and maybe 4-18 guys, I have 3 crews.

Justin R hit the nail on the head.A few ideas based on my buying and selling 1000's of units:1. 

I think the biggest issue is managing expectation and nail down the value of the property now rather than heartache later.

This is a bit too simple to use reliably, though some wholesalers do it.Plus there are 1009810948 threads about ARV and repairs right here on BP, and these 2 pieces are going to be critical to nail ASAP as a wholesaler.  

You hit the nail on the head - the area really is what concerns me regarding this deal.

@Carlos VegaCabri hit the nail on the head in terms of seller financing. 

So don't get discouraged if it takes a little longer to nail down the first deal.

@David Torres nails it... as soon as somebody walks down the hallway and sees that bathroom, they will (fine.. may*) be instantly turned off, and think in their heads they have to gut the entire thing.

Especially since you haven't nailed down the rents and the ARV.You should use tools like Rentometer and others to get rents for an area.