Hi, yes this is still available.
There are no lenses included, so you would need to supply a lens. And no strobes or lighting, so you may need that as well, depending on what sort of shooting your husband wants to do.
Is your husband an underwater photographer already? Do you know what kind of subjects he likes to shoot? Wide angle or macro? Reefs, critters, shipwrecks?
I'm not trying to discourage you at all, but this is a fairly big purchase and depending on what type of photography your husband is interested in might influence what type of outfit you/he would purchase.