I'd have a field day at that place... it's like the battleground of the 68k Macintosh Liberation Army troops, those that could be saved have been air lifted to safety and are now in the hands of the medics, those seriously injured try to be saved and the dead go down in history as the bravest soldiers of all, and their remains we commend to the ages.

R.I.P.

Seriously though, wood must be moved. Who knows what's trapped behind there, some potential gems. The Macs damaged by moisture, well it's surprising just how much they can withstand, especially in sealed units. My 512k sat out in a shed for years hit by the harsh elements and now it's working again, so you never know. I'd be interested to see what you mean by "rusting" though. Must refer to the ports and connectors on the back, since I can't see plastics rusting.