Two-Layer FR4 PCB Revision

I have an existing two-layer FR4 board that now needs a clean Rev 2 spin for a consumer-electronics application. The current schematic and PCB files (KiCad) are available; the goal is to tighten the layout,... (Budget: €30 - €250 EUR, Jobs: DFM (Design for Manufacturing), Electrical Engineering, Electronics, Microcontroller, PCB Layout)