I went out with a well known fishing guide in Sydney and his advice was to stick with the manual deploy as he knew people who had gone the other way and had multiple failures. I think it depends on how much you go out though, if you only go out every second weekend and use it half a dozen times a trip it's probably fine. Certainly convenient and has height adjustment.
I have a boat like yours, I think if I had a boat with a cabin I would definitely go the Ulterra option, otherwise I'd just go the manual deploy. I've deployed mine a hundred times and I've never really wished it was self deploy. But that's prob because I haven't owned the other
Can you PM me the price you got as I'm thinking of upgrading to the 80LB