Re: Drains, valves, and seacocks: weighing the alternatives
I have a few thoughts,
On the one hand it sounds like your hoses aren't in great shape, but on the other hand how long have they been there? They're not leaking now so there is a case to be made to leave them until haul out.
Once hauled I suggest just getting the best components for what you want to do. If that's a proper seacock then do it. Don't skimp on the materials.
But I just don't see a strong case for seacocks here. You can't close them when you're gone so if you are and they spring a leak the boat's sinking anyway. How much time are you going to spend aboard? And if you're lucky enough to be there then you don't need the seacocks to fix the leak - you'll have other options like plugs, tape etc. So what do you think they'll get you?
1979 Contessa 26