Bayside Home Reno

Hello! I'm looking for a freelancer to help me complete renovation plan for the Bayside Home project. I have a full rehab and addition in mind for my small single-family home. I have a specific budget I need to adhere to and I also have a special request—the project home will be sold to a Habitat For Humanity Snohomish Co WA family. I am looking for a freelancer that can take a mostly complete plan and make documented revisions to plan. I'm looking for someone with experience in complete renovations and additions and who can work with me closely to make sure the project is a success. Thanks for your time! A PDF of the current drawing is attached.