I've used 2112 @ 58F, and if you use a plastic tote with frozen water bottles added to the water, you can get in the ballpark of that. It's a pretty clean strain at those temps.
This is my plan. I have a cubical cooler that should fit my fermenter bucket. I will fill it with water and ice to control the temp to the best of my ability.
I am always confused by yeast companies guidelines:
"Temperature Range: 58-68° F (14-20° C)
This strain is particularly well suited for producing California Common-style beers. It retains lager characteristics at temperatures up to 65°F (18°C) and produces malty, brilliantly clear beers. This strain is not recommended for cold temperature fermentation."
Although they state this, I apparently should stay away from 60-65F...drives me crazy haha..