have you tryed the righting pole? It looks like an easy addition and does't need to be emptied once your back up. I've had my A out on the beach a few times and a little dragging on the sand didn't leAve a scratch.
I looked at cats on several sites including usaca.info where one boat for sale lead to another not advertised. One of the things I had to consider was how far was I willing to haul my new boat home. I lucked out finding a local boat already where I wanted to go sailing.