Going with the 2x as many guns idea, i'd like it if we could kit them for more gunplatform or assaulty. Right now a Deffdredd technically outguns a naut because of the sheer amount of hits, problem is as we all know deffdredds dont live as long
lol. But for 2x the cost (and then some in the case of Mork) for a semi-fancy gun, ap1, and less attacks due to no additional klaw options doesnt seem to make sense to me for a +1AV vehicle (face it the hull points arent a factor most of the time, its the
AV that means diddly between the two).
Melee options would sport more attacks, maybe 5 after all upgrades but you only have your "main" gun.
Ranged options i'd say sac the klaw for a second main gun. Dude i would seriously love to get a duo-deffstorm mega shoota naut
lol especially if my warboss rolls "Rerroll 1s to hit in the shooting phase" bubble

Also additional side-arm options if you'd prefer decking the hell out in KMB's or Rokkits