With your mast height, you''ll have to go ''round (via Vaca Key and Marathon) to reach the West Coast...so that might affect your decision about using WC yards.
For long-term storage, the two most popular (meaning reasonably priced with good security) yards seem to be Glades and Indiantown. The former is up the river above Ft. Myers and gets excellent reports...but you complicate the issue by also needing an Awlgrip job. (You''d probably need to research that wherever you end up, as its the few workers who will do that job for you that matter, not the yard operation as a whole).
Indiantown can be reached on the Okeechobee Waterway from the Ft. Pierce area (it''s before the infamous RR bridge just E of the Lake) and I hear they have a long waiting list for summer storage, but a call will tell you the story.
Both marinas are listed in Florida''s waterway guide, ''tho Glades ad is small so keep your eyes peeled when looking in the Ft. Myers section.<g>