I have a KS bucket, i got it pre-assembled as I didn't have the patience nor the faith in my ability to assemble it.
Armor I went with SC and it came with all the things I would need to put it together, I like the look of SC armor over the KS, just personal preference. It did require some sanding and trimming but that was all I really did to it. In the end the choice is yours. Good luck!