I had tons of decisions to make when I brought home chicks for the first time earlier this year. I actually suffer from OCD and some other things and can literally freeze when it comes to making decisions. The sand method was my preference until I hauled four soggy 50 pound bags of sand out of the back of our truck. We had old tires and used them to weight down the back on our two-wheel drive for traction.
And now we have four bags of sand we can't compost. They'll eventually be put to good use when I create a new walking path soon, but this is something to consider when you go the sand route.
On the flip side is all the good examples out there of why some folks prefer sand. The Chicken Chick has a blog post on sand and there are YouTube videos, too. The idea is to buy or create a strong metal scoop that lets you easily sift the sand and remove droppings. It should only take a few quick minutes, and most of the droppings will be on poop boards under the roosts, which you can scrape into a bucket with a wide painter's tool you can get at a hardware store for a couple of bucks.
Ha, there's a buck at the back of my property right this very second!!
Anyway, compostable material on top of sand will likely create a mess. Poop is sticky and messy until it dries, but rain will mush it up again. The good news is that it melts and breaks down rather quickly. With the deep litter method the chickens sift it to the bottom where it composts nicely, and all you have to do is create a large screen sifter to sit on top of a wheelbarrow, rake aside the top layers of leaves and pine needles, and scoop up the smaller debris underneath, and there you go.
I have six chickens just like you. Just those six can shred apart a huge compost pile in a few quick seconds, so the deep litter method is perfect for anyone, really. To convert to the DLM from sand, perhaps remove the sand in stages and dump it somewhere for later use as an underlayer for a new pathway.
We have an abundance of leaves and pine needles, but if you find you don't have enough call your city or county and ask about raking up leaves in a park. Some towns even advertise this and put a limit on how many bags you can take. Pine needles are awesome because they mat together and help create a nice padded layer on top of the mud.
You can add grass clippings and wood chips, too.