We have a 1318 sq. ft. home on a 7000 sq. ft. corner lot. We want to increase the sq. footage to 2000 total ft. Theres enough room to enlarge the back of the house 14 to 15 feet. But in doing that we want to renovate the current interior by moving the kitchen and taking down several interior walls to re-design the home. If its possible or cost efficient who do you recommend we contact for a estimate.