Hi! New to the forum, first post as you can see. My partner and I purchased a used 18" WSM via FB Marketplace earlier this week. We we're dismayed to have found the grates are rusted, and initially we also thought the bottom trough was rusted as well, but after reading a bit on here it seems perhaps it's just smoke gunk. Anyway, I've attached a few pictures below, I'm curious what y'all think is the best course of action as far as fixin' her up is concerned. It seems perhaps we should just get some new grates, wipe the bottom trough up with some paper towels and call it a day? I hope that's the case anyhow. Thank you!!