Looks like a great job! I haven't gotten to that point yet with my 066, but it was made clear to me from the start (2013) that I had to at least keep the cooking grates clean. So I do that semi-religiously (so much so that I just had to replace two of the original grates with stainless ones since I pretty much scrubbed off the chrome on the old ones). For the rest, so far I've gotten away with tossing the floor, heat shield, and drip pan foil liners each cook, and wiping the inside down with a damp rag. So far, so good. Good thing these CS electrics are built like tanks.
BTW, you have the same setup I do with the storage box below. Pricey but a fantastic convenience - worth every penny to me. Did you get bigger casters for it?