4K Video Enhancement Project

I have 178 short narrative clips plus 12 completed music-video numbers that were originally rendered at 720p. I now need every one of them professionally up-scaled and polished so they are broadcast-ready in either 4K or, if you can demonstrate a clear benefit, 8K... (Budget: $750 - $1500 USD, Jobs: Adobe Premiere Pro, After Effects, Audio Editing, DaVinci Resolve, Post-Production, Video Editing, Video Production, Video Services)