Comprehensive MEP Consultancy for Residential Design

Summary I need a complete MEP design package my trades can build from directly and that I can order all materials from. This is an engineering brief, not a drafting brief. I have supplied my architectural drawings... (Budget: £250 - £750 GBP, Jobs: AutoCAD, Building Architecture, Building Regulations, Civil Engineering, Construction Engineering, Electrical Engineering, Home Design, Mechanical Engineering, Plumbing, Revit)