Yes. The Vision very much needs a fork brace. So much so that the 16R model had an extra stiffener welded under the mudguard as standard. Not as good as a real one, but I've tried riding with an unmodified mudguard and didn't like it at all.
Have a look on these forums - you won't find many (if any) people with a fork brace that don't recommend them. Not the least is they really help tame those speed wobbles. Also recommended are tapered steering head bearings. I always do both now.
My Tarozzi came with no instructions. I left my dust covers on. They don't stick up much and it seems fine, but I can see that an extra mm or so might help. They come out easy enough but you'll need to drop your forks out to remove them.. Don't cut them off ans they are hard to find.
I didn't like the surface finish of the Tarozzi so powder coated it in satin black. The Telefix on the other bike has a nicer finish but I don't like quite as much - it's a lot fatter.