I'll respond using opinions of multiple sides of the keg camp.
Side 1: Using a keg obtained from unlawfull means is illegal and wrong.
Great price on the keg with a coupling, you will probably not find a better price from a legitimate source.
Side 2: Buy a used keg off craigslist.
You could buy the keg cheaper and have it welded or use a weldless coupling for about $40., especially if shipping is expensive.
Side 3: Go to a beer store you never go to and buy a keg with beer in it.
Drink the beer and never go back to the store again. You just bought your keg for the deposit price. Now go to a small time welder with some home brew and a $20 and your good to go. For a similar price you just got a keggle and 15.5 gallons of cheap beer.