If jammerone is writing from the US, he may be referring to a stationary trailer -- one he uses as a home, which is rarely, if ever, moved. Generally, when I hear trailer or mobile home, this is what I think of. RVs (Recreational Vehicles) seem to be the more common name for what you are referring to, baldranger, in the US. Bizarre, huh?
Anyhow, in that case, he wouldn't have to worry about the jostling unless an earthquake came up.

In addition, since this would be his home, there would be no problems with extreme temperature fluctuations because there would be people living in the trailer at all times, just as in a house. Of course, overheating could be a problem if there were no air conditioning, but again it would be just like compensating for a home with no A/C.
I think the main concern would be making sure that the floor/structure can support the weight of a large tank, the water, and the gravel/wood/whatever that goes inside. I don't know where to find this out, though.
-- Pamela