Keep your Westy outside to avoid moisture causing eventual rust.  This
unwanted outcome happened to fellow Listee Carl Hansen in MN, when his
Syncro was stored in an attached garage.  If you do store it ouside, you
should use a quality cover that will protect the body while allowing
moisture to disipate out ot the atmosphere.

Alternately, if you store inside, use a floor plastic tarp which will be
fairly impervious to water, and keep the engine door open.  It also wouldn't
hurt if you sprayed some
WD-40 (or equivalent) water repellent lubricant on most of the underbody
mechanicals.

Budd Premack
86 Syncro, 73 Super
Minneapolis, MN (Land of Frozen Waters)