5-gallon buckets IMO may be the best fig container there is. Nothing is stronger and more durable. Just be sure to look underneath to check that it's proper number 2 HDPE.
This is the best food grade bucket. If you have a place in your area that sells grape juice for wine making you're in luck. The buckets they use for the juice are closer to 6 gallon and are generally of super quality.... I use buckets from Magnotta wine here in Canada. I seem to have a stock-pile of these buckets... Can't imagine why. ;-) cin-cin!