I am still in the process of deciding and buying a RIB/SIB, and the Highfields are all sold, the next container will take a long time to arrive, so I went to see a man about a boat...
Gemini Zapcat FF15, made in South Africa, better known for their crazy racing antics in the surf, but I would drive it a bit slower/safer.
The Zapcats are light, fast, can be launched from the beach (no boat ramp required), and they would work well with the 30HP ETEC, my preferred engine. And they look cool! This video prompted me to have a look at the Zapcats:
The man I went to see is in fact this fellow, he is the Gemini dealer in Sydney:
Cool! not every day you get to meet an Americas Cup sailor...