removing air from tires on stationary site...

Whatever you do, don't use cinder blocks. They are not designed to support that much weight. When one cracks, which it will, there will be additional stress on the rest of them, and you will have a serious malfunction. Use solid concrete blocks, or solid wood, like railroad ties.
Personally, I wouldn't give up the ability to move the rig, and move it quickly. But if it is allowed where you intend to place it, it is your choice.