JIC, I would fill the LP, the fuel tank and fresh water tank. From TV the storm track points to inland/ driving SE if you decide to evacuate.
If you decide to leave the MH in-place, I agree with parking it away from trees and buildings, and oriented so the rear cap is facing the wind if at all possible.
I'd stow valuables, meds,, etc, in your car trunk now, in case you get al last-minute evac order. I wouldn't bother with packng a lot of clothes though.
Watching live weather radar indicates this might continue North towards Georgia instead of making that hook towards Jacksonville.
https://livewxradar.com/
IMO this will either be a disaster or just a mild blow, and location is the great unknown. But what do I know, I'm 900 miles North of you. Look at what the last hurricane did, took a last minute Eastward turn and destroyed Ft. Myers Beach.