Having all those tools seems like a really good problem to have.....I don't have anywhere near what you have and it would cost a fortune to have 18 feet of tool boxes crammed full and over flowing. It really sound like you could use a cargo shipping container...A 20' would let you organize all your tools on racks if they won't all fit into your tool boxes. The problem is where to put a 20' container....good luck with your problem.I could use some pointers, ideas, or anything really. I have more tools than space. After turning wrenches on heavy equipment for 14 years I have everything from 1/4” wrenches all the way up to 2 1/2, and 1/4” drive sockets all the way up to 1”. And all kinds of other crap, kits, power tools, etc. while I lost my job last year and am in the process of making a career change to get away from manual labor, I can’t justify getting rid of anything, it all cost me entirely too much money that I won’t see when reselling. These tools will likely prove themselves to be useful in the future anyways, and will be passed down to my kids. Between those tools, my woodworking stuff, and everything else, I have 18 feet of tool boxes packed to the point where nothing can be organized, and still have tools on top of said boxes. Top that off with a table saw, chop saw, sanders, and a planer..... I’m drowning in this stuff. It’s also all crammed into my two car garage. I actually just won it back into having enough space to walk in there while the old lady’s car is parked in there. I’ll post some pics when I get home, but I could really use some tips in regards to storage. A full blown 40x80 shop is in the cards in a few years, but right now this is what I’m stuck with. Soon we’re downsizing and moving into the 2 car garage rent house, and renting out the current house, so getting this under control is even more important.