I don't do poop boards, pans, or anything like that. I switched over to deep bedding years ago and never looked back. My chickens literally live in their chicken coop for about 6 snow months out of the year. The only place that you notice any chicken poo is directly under the roosts. In my case, I'll just toss on some fresh litter over the poo and that keeps everything looking good. Most of the chicken poo dries out and automagically disappears into the deep bedding.
My deep bedding coop does not smell. I only clean it out twice a year, late in the spring after the snow has melted, and then again late in the fall before the snow starts falling. It's by far the best method I have ever used.
For your setup, I would suggest attaching some 1X4's or 1X6's by the doors to keep the litter inside, and then toss down a few inches of deep bedding to start. For deep bedding, I have used everything I could find or get for free, such as wood chips, dried leaves, dried grass, and most currently I have switched to using paper shreds I make at home. All litter seems to work for me, but my favorite is currently paper shreds.
Of course, you can also mix together different kinds of deep bedding/litter in the coop. The chickens don't care. When I do clean out the coop bedding, it all gets tossed into the chicken run where I let it compost in place. Later, I harvest the compost and use it to feed my gardens. Deep bedding is a great system for me.