Personally I'd go G12-T75 + K100 over V30 + k100, because the V30 already has a pretty nice punchy bass response. With the K100 it'd just be too much bass.
I used to have g12t-75's. They are awesome speakers with pristine cleans. Add a little gain and they start to fall apart. Personally i dont like the vintage for gain either. My favs are greenbacks or or the anniversary heritages.