8K Audio-Video Sync Export

I have two short projects that were shot in 8 K. Each project contains two MP4 camera files that need to run back-to-back and one separate WAV track captured on a separete audio recorder (RX3 pioneer decks). All I need is for the WAV to be perfectly synced to the combined video, edit the start and end so they aren’t so abrupt, then the whole piece exported as a single 8 K master ready for YouTube upload—no extra cuts, graphics. Please colour correct where possible.

Because my own system freezes on 8 K timelines, you must have a workstation and software (DaVinci Resolve Studio, Premiere Pro, Final Cut, or similar) that can render the final file smoothly. Please name the tool you plan to use and link to past jobs that prove you have handled high-resolution footage before; experience is the main thing I’ll look at when choosing the editor.

Deliverable
• One 8 K MP4 (H.265 or YouTube-friendly equivalent) for each project with the WAV track locked in sync from start to finish. X 2 projects

I will supply the raw footage via a shared drive as soon as we agree.