Currently have four different steel tanks, all of which have been cleaned out and touched up. You can put just about any liquid in them now other than potable water (due to potential small amounts of residue from prior contents). Please read carefully below so you don't ask questions I've already taken the time to answer. The tank numbers go in order of the attached pictures.
Tank 1:
46" x 13" x 24" (60 gallons)
Four top-mounted brackets
Four top-mounted ports
$300
Tank 2:
47" x 11" x 24" (50 gallons)
Four top-mounted brackets
Five top-mounted ports
$250
Tank 3:
46" x 7" x 24" (35 gallons)
Four top-mounted and two bottom-mounted brackets
Three top-mounted ports
$200
Tank 4:
21" x 10" x 34" (30 gallons)
Two bottom-mounted bolts (tank sits vertical)
One top-mounted and two side-mounted ports
$150
Tanks weigh 80-120 pounds each. All welds are good; no leaks. I have drawers full of metal and plastic adapters/attachments/caps if you need them. I am also a welder, so I can weld more brackets on or weld shut some of the ports if needed. This, for obvious reasons, will only be safe to do before adding any flammable liquids inside again lol. I can also transport them just about anywhere.