There are no moisture concerns as long as you heat the incoming air. Even if the relative humidity is 100%, as soon as you heat it up with the absolute water content staying the same the relative humidity gets lower.
The only thing which would lead to a condensing condition on the miners would be a power outage at night, with the hardware cooling down and then the environment warming up faster than the hardware...
There is a company in Canada called
KubeData which made a product called
CryptoKube.
I went to both links but did not find where they are in located in canada exactly.
To ship one of those across the country would cost a couple of thousands. So it would help to know where they are operating out of and in which province they were be able to drop that container.
Thanks.