Hi, my fazer was bought with pitting on both stanchions just at the edge of the fork travel and it was rusting. Not deadly but likely to cause wear on the dust seals at least so...
I got a set of Paulo Tarozzi ones from Wemoto for what seemed like a lot of money for a shiny tube but they fitted perfectly and are working fine some 3000 miles later. However! they did have a tiny nick in them when they arrived (really tiny) and this started to rust though outside the range of travel. This was after the first salting of the roads and my bike is used every day. I treated the bike and the forks in particular with ACF50 and they were fine since.
I got new springs, bushes and seals at the same time I replaced the stanchions. Fitting was trouble free, they were the right size, shape etc and seem well made. Treat with something or get gators to ensure rust does not return.