Covered patio and stamped slab

We are trying to get a sense of the cost for adding a covered patio to our house as well as a 20 ft x 16 ft stamepd concrete pad. There will be some demolition work, but we are looking to get an idea for the addition.

For the patio, we are looking for a vaulted covered patio w/ asphalt shingles, gutter. Patio should be able to be supported by two columns and tie into the house for the remainder of support.