put it on 4x4 or 4x6, with 2x4's for bracing support.
sinks can get REEEEEEAAAAAALLLLLLLYYYYYYY heavy, especially if you have a couple big trays.
6" bolts should do the trick as main fasteners.
or, you can just watch your local craigslist, and watch for a sturdy table, or deskt that you can mount this on. you might have to drill a hole for the drain though, when you hook up plumbing
just leave the thin on the TOP of the table, UNLESS ITS PERMANENT.