I just sold a Hewitt Cantilever with 22' canopy for 2K, so your budget will definitely get you a very nice lift. Be patient, it will show up on craigslist. My lift went to a lake north of Madison, but I can't remember the name.
Another trick of the trade is to watch for lifts that don't get put in the water this spring. That is how I found mine, and one of my dad's lifts. Approach the owner about selling as they typically want it out of the yard.