macintoshes in garage

[curious apple]

Hi everyone! I'm going through things in a relative's house but there appears to be boxes of old Macintosh computer equipment that have been stored in the garage. They have been there at least five years. I believe they were also transported across the country at one point. To the best of my knowledge this storage hasn't been climate controlled. My questions are

1. Would they most likely be completely ruined at this point?
2. Should I be concerned about any toxicity/hazards?

Thanks in advance, I'll post information on models when I can.

EDIT: model information

Apple Image Writer II
Apple II A2S0610
Apple Color Composite Monitor
Image Writer II
Apple Color RGB monitor

 

[velocityg4]

Mold is all I can think of. That would be pretty apparent. Unless they were stored with chemicals.

internally they could have rust, capacitor leaks and battery leaks. Which could be more likely. You can find that out when you bring them back to test them.