How much would you pay for this foundation?

[Adrian G.]

I have bid the foundation out but the prices are all over the place, at this point I have no idea what to price this out at.  I have been rehabbing for 10+ years, but NC is a different monster.  I then thought about GC'ing it myself, hiring out the excavation and then forms/concrete as most were NOT willing to do it separately here in Chicago. Finally some excavators from out of town said they would do it if needed but waiting for there bids on it.

Size: 16ft x 40ft