I got a "complete" 125 setup for $140 off craigslist. Stand, hood, lights, Rena xp3, two heaters, nice powerheads, etc. $1 a gallon is just a guideline, but deals are definitely out there. In my case I found some people that lived about an hour outside of the city that were moving and needed to get rid of it. They listed it at $300 and it went down from there.