I have 3 components of a non-permanent coop: 3x5 2' tall fenced 'base' 3'x5' 4-5' tall enclosed secure coop that sits on the base and a 3x5' 4' tall enclosure that backs right up to the coop side - so 4 chickens have the area under the coop and the area of the enclosure as a proected run. (I know its not enough space, but they free range in the yard for a minimum of several hours a day). My problem is that the best spot to put this set up is a sloped area under a crabapple tree and I am finding it hard to set the base in such a way that its relatively level and solid enough to move the (very heavy, I'll need 3 people to move it at least) enclosed coop part on top of it. I bought a few bricks and concrete blocks and collected rocks of various sizes, tried shoveling dirt to level off the 3x5' "foorprint', put the base and kept sticking bricks and blocks to level and sturdy it, but since the ground is uneven and bumpy from the roots of the tree - if its sturdy on one corner, the bricks are loose and easily movable in another spot. The dirt seems to just fall away when I try to tamp it down and push it against things. Is this a job for a professional? Are there secrets or tips to propping a heavy shed/coop type building up without having to set permanent footings? I'm not counting on the run to be predator proof (I'll lock them in the enclosed coop at night) but I do want the enclosure to be able to keep the chickens contained and cats out at least.