Not much to add. If you vacuum seal the gear you seal in or out any moisture as well. Often open air exposure will allow moisture to evaporate as gear cools and warms. Not sure about fishing gear, but there have been many discussions around firearms. I favor cool and dry fairly constant temp environmens with oil rag rub/gear lube beforehand.

May I suggest giving away the line and replacing it when you recover.

and sincere Very Best wishes and God Speed to you! Prayers en route.