[Elecraft] K3 near salt water

[Robert Fanfant]

All,While on a mini dx-pedition, most of the original exterior screws in my K3 developed rust after operating near salt water for 10 days. I have ordered the stainless steel screws to replace the original exterior K3 chassis screws.
1) Should I be concerned about rust developing inside my K3?2)Over the next several years,  I plan to operate near salt water for  extended periods and want to make sure I'm am not going to damage my K3. Is there anything I can,  or could have done differently to prevent the rust from developing?
-rob N7QT