When you price a 40-gallon stainless steel bucket, you'll be happy to use a plastic tub. The other thing you need to think about is, once you fill up this tub with "chemicals," what are you going to do with the dirty chemicals? You may end up with a product that the EPA claims is hazardous waste. It will be hard to get rid of, and the recycling costs are very high, and on the other hand, the fine may be very expensive for you. The small amount of law is illegal in 40 gallons.
