Glad you got them and they're much healthier to now with you I'm sure.My chickens have a pen about 25' on one end and 7' on the other and 40' long (ordinance restrictions making for a strange shaped pen). I have a foot or two of wood chips in there. I was ordering dirt for my garden beds anyhow, and they would deliver the wood chips (mix of fresh and aged and some garden debris) to my house $1/yard and $20 delivery.... Heck yeah! I got 8 yards. They're still working their way on breaking it all down but some of it is starting to look like really nice soil. A lot of it is gritty and sandy around the trees and they dust bathe there. I throw in fresh grass and weeds every day, and my sisters grass clippings and weeds too! Sometimes I build dust baths for them special out of D.E. and wood ash and a bit of sand. They go nuts. I still need to work on the "multiple levels" thing for them. Their coop is up high and there's some branches in there but the branches keep getting eaten by the earth! Sucked in and added to the litter. Still, the ladies do well! I'm going to put in some log perches eventually that won't be sucked in, and a cinder block so they can wear down nails and beaks naturally.
Now, where I got my Golden Comets from did NOT have deep litter. The chickens were kept in a big 6X8 coop, but the outside pen was only about 10X10 for some 20+ odd chickens. It was nothing but poop soup and the lady could barely even walk through her pen with shoe covers on. I've seen cleaner pig wallows! I will NEVER EVER let my chickens end up in a situation like that. Got my hens home and they smelled like everyone who's ever complained about chicken smell's worst nightmare. Three days later they were clean as a whistle! I'll be sticking to deep litter. This year I'm going to be doing sprouting grains for them and then next spring, forage frames to get some grass/weed/forage growth. They do have some shrubby weeds that they just don't like eating growing in there, and two trees right there, but that's it at the moment, since we put in the wood chips and smothered everything.
They're also below my rabbit cages. So they have a ball cleaning up after them! Healthy hens are worth every effort!