G major is a favourite key of Keith Richards - he tunes to DGDGBD a lot of the time and has done so throughout the stones history.

He uses a Capo often too.

I've played a few Stones songs on the mandolin and in my experience they adapt very well.

p.s. Note that Mandolins lowest two pairs of string (G & D) reflect the "Keith" tuning and provide the Power chord         d G D g b d, which means those power chords make the move note for note, so you can play those chordy riffs exactly the same, albeit 8ve up.