Have a friend who converted a Kelvinator into a kegerator. Assuming it runs, 180CAN seems kinda spendy to to me unless this is about recreating a specific era look you're going for. Antique fridges are antique on the outside and ancient on the inside. They're solidly built, but who knows how long they'll last. Just be forewarned that when you install tap handles, if you nick a freezing coil it's a done deal. You'd basically be looking a whole new setup for $5-800. Freezer box is no problem and is a great place to store hops and frozen yeast.
If it's something you really want, I try to talk her down to $100. If not, and any old fridge will do, you shouldn't have to spend more than $40.