Upscale 60-Second Film Clip

I have a short 60-second film segment currently sitting at 1280 × 720 (MP4). I need it up-res’d to true 4K while preserving detail, color fidelity, and the cinematic feel of the original footage. Because... (Budget: $30 - $50 USD, Jobs: After Effects, AI Video, Animation, DaVinci Resolve, Video Editing, Video Processing, Video Production, Video Services)