MEP & Energy-Efficient HVAC for RV Garage

I'm looking for a skilled professional to design MEP, roof drainage, sanitary, and HVAC drawings for my RV garage/casita. The garage measures 22' x 50' and has three cutbacks to the main house.

Top Priorities:
- MEP and HVAC drawing: This is my primary focus. The HVAC system needs to be highly energy-efficient, as I want to keep operational costs low over time.

Key Requirements:
- Energy-efficient HVAC: The most critical aspect of the HVAC system is its energy efficiency. I want a system that will help keep energy costs down without compromising comfort.
- Specific HVAC Brand/Model: I have a particular brand/model of HVAC units in mind for this project. Experience with this brand/model will be an advantage.

Ideal Skills and Experience:
- Proven experience in MEP and HVAC house plans
- Expertise in designing energy-efficient systems
- Familiarity with the specified brand/model of HVAC units
- Previous work on similar-sized projects (22' x 50' RV garage/casita)
- Ability to incorporate additional features like security cameras, car charger, & different elevator into the main house design.