Craig, I'm new to the Tampa area, but there are a bunch of RV Storage places not for off of 75 about 45min-to-1 hour north of Bradenton. (2 hours from G-ville). I always see big RVs with trailers and huge boats in them. There is one particular on 301, which is not far from 75 heading north towards G-ville. I can get the number for you if you need. It is in Brandon, FL.
Call me at 813-675-3546 or email me your cell at
evan.smith@sorc.com
Evan