Update: 02/13/2017
MTH is sold out in pre-order for both the 4014 and 4012 Big Boys.
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Wanted to share that MTH has announced their 2015 One Gauge catalog will be released in about two weeks. Soon as it is available I will post links and a copy here. Stay tuned.
When it is released will be able to find it at this link: http://mthtrains.com/news (May want to periodically check this link if you don't get the daily MTH update emails)