You need to learn to cook a great one on that kettle! It will teach you more and you will spend less that way than spending it on a pellet pooper and still be looking for the Holly Grail of Brisket. Temp control on a kettle is very easy. Start the first fire in it with the Weber manual it is written for grilling not BBQ. Use the "Ring of Fire" setup! I can run 250 - 275 up to 16 hrs and never add fuel or adj a vent just rotate the lid 90 deg every 4 hrs.
Keep the Cook simple> Remove the Hard fat, S&P Fat cap down, cook 4-5 hrs wrap in BP continue to cook to probe tender. Rest on the counter in the paper until the IT reaches the 150"s and enjoy it!
I'm a Proxy Vegetarian> Cows eat grass & I eat cows.