This is our raft setup from the MF Salmon at the end of August this past year. Drybox up front, drop bag behind that (chairs, table, charcoal, other misc things). Rower sits on cooler, cockpit has two captains bags in it (one was a cooler and one was a drybag on this trip to save weight). A pelican case on the deck on each side of me, one for tools and the other for cameras, and they also make a good step for the dogs to get back up on their pile. In the back, groover bucket, 2-3 vittle vaults, water jug, then a layer of drybags, the handwash buckets, and the paco for the dogs. It ends up quite balanced. We also hang the un-pin kit off the bow (green dry bag hard to see). We do that because it weighs a ton and it's nice to keep accessible even when upside down.
The second photo is hard to see of my cat, the yellow one. I had the full-on drybox going as it was May 11 on the Selway and had only a small cooler. It was a short trip and way overkill (but it was brand new!!!). Behind the drybox was a small cooler, small water jug, and mesh bag of drinks. Up on the side of the tubes I had the handwash buckets, paco and drybag. Then the big watershed on top of the drybox. I recently picked up a Mojave drybox (plastic molded, using a gamma seal lid) and a cooler of about the same size. They sit side by side perfectly in the rear bay of my cat, so that will be my new rigging on that if I need a decent cooler. I also quit carrying my paco on the cat, too darn heavy. My next trip, on the MF Salmon I also switched my rigging, started carrying one drybag on top of each tube in the front. That helped me keep my frame more centered and not have to push it so far forward. Oh yeah, drybag with chair and table sits on one tube beside me. The thing I like about the cat is how many different ways I can rig the boat depending on what I need regarding group gear and cooler size. I don't keep drinks in coolers, which helps a lot.