Residential Plumbing Plan Needed

I am in need of an expert who can create a basic residential plumbing plan. The work will include planning for drainage and hot/cold water systems in different areas of the house.

Areas to be covered:
- Kitchen
- Bathroom
- Laundry Room
- Outside Taps
Toilets
Boilers hot and cold water and floor heater boilers
Septic tank

The residence is large, with four or more bedrooms. It's crucial to incorporate all these details comprehensively in the plan.

Ideal Specializations & Skills:
- Knowledge of residential plumbing
- Previous experience in plumbing layout design
- Ability to suggest efficient plumbing solutions tailored to a large residence

I look forward to your professional input on this project!