1) My housing is Sea and Sea, so came with a moisture alarm, but it's not clear as your Ikelite is...worthwhile for me? I think so. For your housing? I think I'd not bother...
2) Insurance... I'm with Rob on this one. I don't have specialist insurance for my kit, but it
is covered on my household insurance. For a fraction of the cost. And yes, it covers me whilst abroad...
