Stainless Chain Question
The way that most anchors are used (i.e. on deck far more than they are in the water) the stainless steel chain should be fine. If you have any concerns about dissimilar metals I would put a piece of plastic hose around the shackle pin and sides of the shackle to isolate the chain from the galvanized steel. I would not use the stainless steel chain for a permanent anchor or if you exclusively anchor your boat rather than occasionally anchor your boat.