As for fire pot clean out, I am sure there may be others but Camp Chef is the one I am aware of having something like that. If I was looking to buy today and was not looking at dropping bigger Cookshack or MAK money. I would be buying a Grilla Silverbac AT. I think their dual mode controller would be a great thing to have.
Hope you find a cooker you like with the features you want, it is not always an easy process to do that.