I am unsure about the bolts.
From what I can tell all of the Spyder front blocks will work on the Black Dragun. They simply press fit in and are held on with a single screw.
Any aluminium polish will work well. I use Cameo on my stainless steel pots and pans and it polishes well without scratching. Unsure if it has the grit to remove paint/coatings though. Barkeepers Friend is another polish, however it doesn't shine my pots and pans as well as Cameo.