Since I had all night to think on this..............this is what I'm going to do, so far. :greengrin:
The cement slab is where we had our grain holding tank.........it's just perfect for this.
The Spousal Unit said I could use the 2 stock tanks, and I could drill holes in the bottom for drainage. Well, I really didn't want to do that, and the tanks have a drain hole in the side, about 4 inches or so up from the bottom. I came up with this "ingenious" idea to keep the soil from going to the bottom and plugging the hole. (well, it may end up doing that anyway, but it won't be from my lack of trying to keep it out.) I took 6 calf pails (I think they hold about 2 1/2 gallons), turned them upside down, and put down some wire on the top of the pails. The holes are pretty close together, this is stuff that we used to enclose the big maternity pen in the barn to keep cats in. (I call that my Al-Cat-Traz). Obviously, the wire doesn't fit tight all the way around the tank............I'm going to put landscape cloth down and drape it over the sides of the tank, that way it won't flop back down into the tank when the Spousal Unit puts my dirt in there.
The long, black plastic thing is the old toolbox he had for a truck we haven't had for years. He said "you can have the damn thing, it's a piece of crap anyway". LOL I'll drill holes in the bottom of that, and I set it up on 2x4s so it will drain better.
The long wooden "thing" is what used to be the support for our waterbed. I'll have to figure out a way to keep some landscape cloth in that to contain my soil.
The "cannibal cooker" has a large crack in it..........no problems there getting THAT to drain.
Gardening on the cheap............that's me. Hope the "livestock" will stay out of it, or I will get ugly(er).