Utility Contractor Booth Design

I already sketched a basic concept and gathered several reference photos, but the layout and proportions are still off. I need you to turn that rough start into a polished trade-show booth that clearly showcases our utility line contracting services... (Budget: $250 - $750 USD, Jobs: 3D Animation, 3D Design, 3D Modelling, 3D Rendering, 3D Visualization, AutoCAD, Graphic Design, Interior Design)