This Limk might be of use to you with your coding effort.
Unfortunately I had a boat stolen, which we were about to code, and it is looking unlikely that the boat will be being replaced. I therefore have a great deal of code ready equipment for a RIB (inc Liferaft, grab bag.EPIRB etc!) which is surplus to my requirements if you are interested.!
First aid kits are available from Ocean Safety but I think they come vacuum packed from a firm in Cardiff I'll come back with the name after having a look at the package