I would have been ok with the latter numbers because I have been stockpiling materials for like two months, but...I did not know if I could trust them due to the lack of "professionalism," and my lack of experience. 

However, for building materials, we get 99% of them from the four mentioned!

You don't see any actual receipts for materials or invoices from contractors they hired.

He seemed legitimate at first, and I even had a few friends look over the materials he provided.

Key Deal Points:Loan Amount: $88,000Lien Position: 1st position Purchase Price: $120,000Appraised Value: $250,000Interest Rate/Return: 11% annual returnTerm: 5-year balloon (meaning the entire principal and interest must be paid at the end of the term)LTV ratio: 35.2%---Licensed Lending company for contractsRMLO package completed on buyersServicing company for payment

Think of it as insurance against substandard work or faulty material.

We had to repaint the entire unit because the material he used left oil stains everywhere.

Cost to build is $350K (I am managing it all myself and calling in favors around the city to get low rates on materials and labor).

Price out as much as you can in terms of materials and estimates.

I'm sure people would pay extra for some kind of "meal prep/private chef" type package in their living situation.You've got the right idea thought, but don't be afraid to reach...nothing wrong with dropping your price after a couple weeks if you don't get any interest.