Definitely could.
Nailed? Really???
Also...First Aid Kit? Sorry for mentioning em twice this evening, but have gone down a Swedish wormhole tonight and 'tis wondrous.
Arctic Monkeys could definitely do the legends slot, as they've got about 6 albums out now and been around for ages. Pulp will deffo headline one night as they're on a comeback and that means Harry Styles does the Friday, with GnR opening the other.