I've tried most of these, but a couple give me hope again! I also live in rock and clay. The henhouse is elevated, but the pallets rot in no time from the wetness. Pavers get covered with dirt by the hens. and they all make holes around the perimeters of a large fenced area with a wire roof. (lots of raptors in my area) You've got me thinking about more possibilities!
I have had 2 roosters that got bumblefoot. For one, I fed him medicated chick feed and it cleared up slowly! He couldn't even roost at first, but you can't tell anymore after a year.