Rhodes Ranger vs Cal 27 t/2
Well, there is a Russian roulette of a choice. These are extremely different boats. Of the two, if the Rhodes Ranger is in good shape,it would be capabable of doing what you want, but most likely only very slowly and with a lot of modification (add fuel and water and supply storage, ad storm shutters for the large cabin portlights and perform long term maintenance items such as replacing standing and running rigging, chainplates, etc.).
The Cal 27 probably is unsuitable no matter what you do to it.