Do the kits ship with a few extra rivets or do they have the exact number? I'd like to practice a couple rivets on scrap to see if my dimpling/countersinking skills are up to par, and to have at a couple before I do the real thing. I don't feel like counting all the rivets in the plans and counting how many are in the rivet tray to see ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)