First Floor Redesign and Bathroom Addition

I'm seeking a skilled designer/contractor to improve the layout of my first floor in my 100-year-old home. This project includes adding a bathroom and enhancing the layout of the bedroom and bathroom.

Key Requirements:
- Redesign to improve layout and functionality
- Add a bathroom
- Modernize while respecting the home's historic character
- Experience with old homes is a plus
- Strong design skills
CURRENTLY HAS A CHALLENGING PLUBMING LAYOUT

Ideal Skills and Experience:
- Proficiency in home layout design
- Experience with historical homes
- Strong aesthetic sense to blend modern and traditional elements
- Knowledge of local building codes and regulations

Please share portfolio and relevant experience.