Had the mice problem once and they were in the engine compartment. We have it stored at a facility with several barns and we did move to another barn several years ago and have never had a problem since.
Any day you wake up on the sunny side of the grass is a good day.
"The moving hand writes and having writ moves on. Neither all thy piety nor all thy wit can lure it back to cancel half a line nor all thy tears wash out a word of it." The Rubiyat by Omar Khayyam