ESL57 storage advice

I am soon to pick up a pair of Quad ESL57s and have no choice but to store them over winter in my dry but unheated warehouse loft (Bideford, near-coastal Southwest UK, wet not cold).

Recommendations and tips, please. Thanks in advance, Carl.
 
I am soon to pick up a pair of Quad ESL57s and have no choice but to store them over winter in my dry but unheated warehouse loft (Bideford, near-coastal Southwest UK, wet not cold).

Recommendations and tips, please. Thanks in advance, Carl.

I live in coastal SoCal. if you PM me I'll send you my address and I can store them for you.

I promise to use the Aleph 2s to shake off whatever moisture the furnace didn't dry out.