Mrs Dan and her husband Roy are planning to their dream house. The plan show the size of the house to be 2,900 square feet, the average lot for and house similar to this one is $150 per square foot. Roy is a retired plumber and feels he can save money by installing the plumbing himself. Mrs Dan feels she can take care of the interior painting with the help of their two sons. The following average cost information is available from a local bank that's makes loans to local contractors and dispenses progress payment to contractors when specific tasks are verified as complete.

25% Excavation and framing work, 8% Roof and fireplace complete, 3% wiring roughed in, 6% plumbing roughed in, 5% siding on, (17% Windows, insulation, walks, plaster and garage complete), 9% furnace installed, 4%plumbing fixtures installed, 5% exterior painting complete, (4% light fixtures installed, finish hardware installed), 6% carpet and trim installed, 4% Interior decorating, 4% floor laid and finished.

A) what is the estimated cost if the Dan's house if they use contractors to complete all if the house.

B) Estimate what the cost of the house would be if the Dan's used their talent to do some of the work themselves.