What others said. But as far as only having one basket and needing to add coals, just use your chimney to light another batch or two and add them to your basket. Pulling the grate and meat out for a minute to access the basket won't kill ya.
UDS'-55&16, Akorn, Bar-B-Q Kettle, Drum Grill, miniWSM, cobweb-covered gasser. I'm JD.