Any 2.5 inch IDE enclosure will be fine ;-)

I'm afraid not. Sorry.

To be honest, not much. If the logic board is fine, you could keep it just in case a same model drive went bad on this side. The screws may be useful if you are dealing with small electronic devices. But for sure, the most interesting part is that strong magnet.

Hi, of course, there is! Any 2.5'' ATA hard drive should fit. Beware, some computers have a 128GB capacity limit.

It's very hard to put the underside cables back in their place,i recommend to remove the PC card cage to make more place for your fingers!