First, when you pick up the Kilz, see if they'll tint it for you. They usually DON'T want to tint that stuff, but I've found a few old timers and some brand new employees that are willing to do it, you just gotta hope you get lucky with who helps you.
Second, I like those roller covers for the funny-every-time joke between my buddy and I....those are Purdy rollers...we grab one...hey boy, you shore do gotta purdy mouth! LOL couldn't help myself going OT on that one!
Third, use a random orbit power sander and start at 600 grit and work your way down to 100 in steps (400 & 220, I believe). You'll end up taking less time that way and will get a more consistent result. You'll want to take it easy with the coarser grits, probably only a light pass to get started. Seems like a pain in the ass, but you'll like the end result. If you don't have a power sander, rent one. Buy one if you have even an inkling that you may use it again one day, and make sure you get one that accepts hook&loop (velcro) paper.
Lastly, for those who are doing the same thing, a pointer. Make sure if you're using a primer that the paint matches up with the primer. If you use an oil based primer, you MUST use an oil based paint. Latex primer, latex paint. DO NOT mix the two products up. It'll look fine while wet. It'll be later on after all your hard work is screwed up that you'll be kicking yourself for making that mistake.
DON'T ASK how I know that last point...shutup LOL
woops, while checking this post over again, I noticed you said you're gonna use a wet cloth. DON'T. You may end up raising the grain/fibers. While you're at Lowes, ask them for a *Tack Cloth*. It'll do what you're trying to accomplish with the wet cloth, without screwing up your finish.
Wear a dust mask and goggles. Ear plugs if needed, straitjacket, codpiece, helmet, etc.

PM Stingray to see if he can give you any pointers, I betcha he can tell you about something he's done that I never though of. Mebbe ask him if he can tell you how to do flames or pinstripes!