+1 for LACK rack, that takes me back a couple of decades, lol.
When I move location I generally leave the old racks behind and fit new racks, but that's probably because the limiting factor is the height of service elevators in the buildings I move into/out of. With an 18U that's probably not an issue.
Racks are dirt cheap compared to server hardware, so I'd contact office renovation and leasing companies in your city and ask if they have anything they've cleared up from old tenants. Otherwise, just buy one new - you're going to be paying probably $250-500 including shipping and you get what you want, rather than taking what's available.
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