Stamped Helical Pile Design with crawl space foundation

I’m finalising plans for a two-story home that will sit on sandy soil and I need a complete helical pile foundation package stamped by a licensed engineer. The foundation will use round shaft piles and everything has to satisfy the latest International Building Code requirements... (Budget: $250 - $750 USD, Jobs: AutoCAD, Building Architecture, Building Design, Building Information Modeling, CAD/CAM, Civil Engineering, Construction Management, Engineering Drawing)