That version of "Stone Crazy" with Jack Bruce, Peter Green, Aynsley Dunbar & Rod Stewart is really great...a whole album of that lineup would've been interesting.
NOW, I would like to hear a Green/Clapton duet album (along the lines of the Clapton/BB King album).
The Peter Green/Peter Gabriel pairing is intriguing.
Peter Green with Sting & Stewart Copeland would be interesting. (I guess that would be SOMEWHAT close to your Peter Green with Jack Bruce pairing, eh?)
Peter Green with Shaggy or Mary J. Blige might be a stretch, but an interesting listen.
Peter Green/Gregg Allman...hmmm....