I help out my close friends, my best friend bubba has 2 boats and 3 watercraft. Small yard. So i keep his stuff here.another friend's son is fixing up his truck, so i keep it inside so its not full of snow when we arent fixing it.
I have many sheds. Its like a curse sometimes, when it comes to maintaining all these buildings.
No aquaintances nearby where you could rent a small indoor space?
I remember i had no place to store anything, had to store all my stuff outside.
Fixing cars in the dead of winter and replacing a starter in pouring rain.
Good luck,somehow it will work out for you.