Ederson
Walker
Kompany
Mangala
Danilo
Touré
Gundogan
Foden
Bernardo
Aguero
Sané
Bravo, Delph, Otamendi, Fernandinho, D. Silva, Diaz, Jesus
Is my best guess. This way Silva, De Bruyne, Jesus, Sterling, Fernandinho, Otamendi and Delph are well rested, which will probably be 7 of our 10 outfield starters against United
And then for the derby:
Ederson
Walker
Kompany
Otamendi
Delph
Fernandinho
Silva
De Bruyne
Sterling
Jesus
Sané
I think those in bold HAVE to be the front six for the derby. I love Sergio but, Napoli goal aside, he's been close to useless from open play since the crash. Jesus has grabbed two assists off the bench in the last three games, on the other hand, and is looking more lively, so probably deserves to start against United.
I think you have both team selections pretty much spot on there mate.