Has anyone replaced switches on their Masterbuilt Gravity Series? Is it something an idiot (me) could do?

Said idiot has a stone on the top hopper switch to get keep the fan on and the fire going. Door went and I forgot about it, next thing I know my son is saying the bbq is on fire, flames over a metre out the top of the hopper. In closing the lid and shutting it off to kill the fire the top hopper switch has melted! Are they easy to replace?