20-Minute VSL Lip-Sync Fix

I have a 20-minute video in Portuguese, fully edited, currently playing as an MP4. The visuals are synchronized, but I need the speech to be in Spanish. I need every spoken word to be perfectly aligned with the mouth movements... (Budget: $30 - $250 USD, Jobs: After Effects, Artificial Intelligence, Audio Editing, Audio Services, Avid, DaVinci Resolve, Final Cut Pro, Video Editing, Video Production, Video Services)