i am taking a week and heading north up the coast from Charleston, solo. just day sailing up the coast, getting a hotel (if applicable) or camping at night. i know one rogue wave could crush my boat or a bad storm could blow me out to sea. i will have two submersible vhf's, flares and cell phone. do i need an epirb. what's the range on a vhf anyway. are there cheap epirb's?