Next steps when you are ready: Developed 3D Design, $750 (full 3D model, 6–8 renders, DFM notes) and Manufacturing-Ready Design, $1,500 (manufacturing-ready model and drawing set).
Three revision rounds. Round 1 can change the concept substantially, including its overall shape, within the agreed brief. Round 2 refines it. Round 3 is the final sign-off on the direction. Anything beyond the brief becomes a new brief, quoted on its own.