Intonation is, I would suggest, a bit over-blown, really. How many acoustic guitars have adjustable saddles..? Many arch-tops have movable bridges that are slanted as best as is needed for this compensation. Nothing wrong with individual string adjustment, of course, but I doubt the real effectiveness when playing 'normally', for most ears. If it's just for show, why not, but a pencil as a bridge held in place with an elastic band works, too.
As for vibratos, of any sort... An invention of Beelzebub. I'll have no truck with 'em.