I used kiwigrip on my 18SF when I redid her a few years ago.
Full deck, and top cap on an 18 used half a gallon, one coat. Maybe slightly less.
I bought white and had it tinted to a custom beige at my local hardware store.
You can have it tinted to whatever color you like.
My texture came out pretty smooth actually, I would not call it "too agressive" at all. It all depends on how you use the roller. Dont keep rolling it while its tacking up. Thats how you get the tall stiff peaks.
Still have the leftover half gallon. Might reroll her this spring, if I'm feeling up to it (probably not ;-)).