I hauled 2 sets of metal shelving from Zanesville last weekend, intending to erect them both in my garage. After seeing how freaking big and heavy these are, I am going to sell off a set.
These were used by an Ohio utility company to store spools of electric cable. In other words, they will hold a lot of weight. A lot.
What I have will make a 12ft long by 9ft high by 3.5ft deep unit. These go together with ~4" bolts, which I probably have enough for you. You'll need plywood to make the horizontal runners (how thick depends on how much weight you need to hold).
$50, trade?
You will need a full size truck.
And yes, I'll grab a pic or 2. Thanks.