That's a challenge , further south you go from Vero the costs sky rocket. Some cases $ 1500 & up if you can get in ,
Unless your in a marina having some contacts its tuff too find on the blind
I used too keep my boat Halifax Marina Daytona ,
Further then you asked but if you cant find something ,
Concrete floating newer side , ( harder too get in ) wooden fixed , older side , State operated marina , Fees are reasonable , Older fixed side generally open , You pay by the slip size not boats size , They offer many options , Its along Halifax River ICW apx 8 - 10 miles north from Ponce Inlet.