How do you store your "stuff"...

I have a big old barn built in the 1930's it has 2 lean too buildings on it, 1 concrete floor & the other is gravel. Gonna get started on it soon. Needs some roof repairs 1st. Then add more lighting, power outlets, ventilation system, air lines ran in the walls with stub outlets every 20 feet, insulated & finished off with 5/8 drywall. Looking at $25,000 to get it to my standards. Tommorrow I'm pulling all my stuff out & making piles, car parts, construction tools & materials & dump run bullshit.