PROJ 410 Week 2 DQ 1 Contract Pricing Options

Assume that you have made the final payment on a one-acre residential lot you purchased years ago to build your retirement home.  You are now ready to build your dream home.  This will be your ongoing project for the next couple of years.  Which contract structure (fixed price, unit price, reimbursable) do you think you would use to proceed with your project?  Explain your choice.