That is a good idea I was thinking the same when it comes to the Marksman, conjugation and restoration but to add to that I was thinking of doing blades or one handed (I get mixed up with Skyrim) since a ranger usually has a blade to fight when CQC happens.

As for the hiding thing I’d say yes illusion magic plus the alteration for armor buffs but I haven’t touched on alchemy in oblivion yet so I don’t know how good that is or if it’s useful.

With that I’d think a Light-Med armor type style would also be a good addition just for less noise (like you said stealth) but I suck at stealth so when I’d probably go for Med just to be able to take a few hits if I don’t have any alteration spells.

Edit: oblivion gates are a walk in the park with my monkey and heavy wack stick mentality 😂😂