What type of vessel?
Epirbs can be rented...Boat US has a program.
Do they have any form of long range communications? SSB, Sat Nav, Iridium?
would be nice to obtain weather data.
Your choice, You've been to bermuda..600 miles RT..you know what can happen out there; and how important weather data is.
Life rafts can be rented too if I'm not mistaken.