Dylan, it's a bilge-keeler FFS - a rusty bilge-keeler at that! ..I imagine a raft of 44-gallon drums would sail better than that.
Unless you plan to turn your Island Cruise into a Slug Restoration blog - run! run far away!!.. and forget about it. No-one (especially someone like you) needs something like that - even for free!
"Honestly, I don't know why seamen persist in getting wrecked in some of the outlandish places they do, when they can do it in a nice place like Fiji." -- John Caldwell, "Desperate Voyage"