Use at least six five ton jacks at a time. Have sufficient cribbing (4x4's
and 2 x 4's and shims, or concrete pillars and shims) available so that when
you DO get it to the right height, you can put in the cribbing on those six
points, and not lose what ya got. Then release the jacks, reposition, and
repeat. If you're using just the screw up jacks common to "manufactured
homes", that's okay, too.
What you don't want to do is jack this end up, get it right, then jack the
other end up, and find out that it kicks this end out of kilter, culminating
in a day of running circles and consuming large quantities of beer.
I'd use at least four jack points, four jacks, and a plan.
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