Welcome to BYC! It's possible you may have over-filled your housing. Where do you live and what're the dimensions of your very attractive little coop?
Cinderblocks will work. Another option:
- Skirt the bottom edge of the chain-link with hardware cloth all around on the outside. It should be folded into a 45° angle. Place the upward edge against the fence and lay the horizontal on the ground (on the outside perimeter). I did this and stapled the horizontal part to the ground with landscape staples. Grass will grow up through it and hold it down in time. Chickenwire will disintegrate in this application. Galvanized hardware cloth is the best material for this. People also dig the hardware cloth straight down into the ground.
Sounds tortuous to me--impossible, if you're on rocky ground.
- Put two strands of electric fence close around the run: one a couple inches from the ground and the second around ten inches up. For the gate, get a couple of insulated gate handles/hooks (often referred to as "gates")--one for each strand. I use solar, but if you have grid power to the coop, that's a lot cheaper. You do need to keep the grass trimmed under the wires or your fence will no longer work very well.