Residential Geothermal CAD Drafting

I need an experienced MEP drafter to draw a closed-loop geothermal ground field and multi-zone radiant floor piping for a residential project. I will provide the architectural CAD base, equipment sizing, and thermal load calculations. Your job is strictly to draft the exterior loop layout, the interior PEX routing, and the basic indoor pump/manifold schematics. No engineering stamps or structural calculations are required