I think that’s what the ColorTrace feature is for! 🙂 Have you used it?
Check the manual, page 165, Using ColorTraceTM to Apply Grades From One Project to Another
ColorTraceTM is a key feature of DaVinci Resolve, which lets you copy grades quickly and easily from the clips of one session to those within another, based on the source timecode of each clip, or using clip names when in Automatic mode.
It’s a really great feature, and I’m sure it will work out for you.