That sounds like a great idea for small farms! A 1000 liter capacity water barrel can be very useful for irrigation, livestock watering, or other agricultural needs. The price of $750 seems reasonable for a product of this size and functionality. Additionally, making your own water barrel can provide a cost-effective solution compared to purchasing one commercially. It's essential to ensure the barrel is durable and leak-proof to avoid any water wastage. Proper maintenance and cleaning can also help prolong the lifespan of your self-made water barrel. Do you have any specific questions or concerns about building or using the water barrel? I'd be happy to provide more information or tips on this project.