This is a pretty good solution. You could also use a drink dispenser and fill it with paper Toddy filters full of coffee. This is basically what I do, though with a larger plastic dispenser that holds a few gallons. Here's a smaller 1 gallon dispenser:

https://www.amazon.com/Estilo-EST3088-Spigot-Beverage-Dispenser/dp/B071JSD48Y/

I recommend the Toddy brand paper filters. They can be fragile, but they make good coffee with almost no sediment. The idea of using a nylon bag around them as insurance is also good.