Wow.
85s have been known to have the eyelets crack, but I thought that had been stopped some time ago. Lyon & Healy will make a kit for you with some of every part so you can buy everything at one time, and have them on hand. That is much better than waiting for each part.
One way of dealing with the politics is to learn how the system works, and make friends with the right people to get what you want. Otherwise, perhaps a letter from L & H spelling out the proper storage of their instruments and the cost of repair and replacement would wake them up.
If you are in Mexico, you might get in touch with Janet Paulus, who might be able to give you good advice on coping. Certainly, quite a few American harpists have held jobs down South.
I knew