Insulated Timber Frame Redesign

I already have 16’ x 24’ timber-frame drawings that the Leelanau County building department accepted structurally, but they are drawn as an open, non-insulated structure. I now want to enclose the frame... (Budget: $250 - $750 USD, Jobs: 3D Modelling, Architectural Engineering, AutoCAD, Building Architecture, Building Design, Building Engineering, CAD/CAM, Drafting)