Hvac mechanical plans design for custom home

I'm in the process of building a house, and looking for someone to design the heating and cooling system / mechanical plans. I have all the plans for the house, and already framed (2600 square feet). I am hoping to get these done asap. I am not a builder or an expert in this area. I have a heat calculation that I have attached as well. I can measure anything you need me too as well.