Here's a thought to make your blood run cold for long enough to seriously think about pulling that listing to protect yourself. It's not the stupid c u next tuesday you need to worry about, it's the real c u next tuesday who is smart, realises that to do what you did you need to have some serious resources, that you're good for at least several grand, and to make you the victim while they grab as much of that as they can get. All they have to do is claim they really were that stupid, the expense of disproving that in a court would break you on its own because it would need expert medical witnesses and the only way you could avoid the expense is if you win, and you wouldn't because the allusion to Apple's copyright is so obvious. While a one-off like this isn't likely to fall foul of trade mark law because it's not a working phone, it can be claimed as copyright infringement, and the higher the bidding goes, the bigger the stakes, maybe big enough for Apple to care, and they are ruthless about this on any scale. You'll feel better if you pulled it now, without ever knowing how high it might have got, than you'll feel becoming a celebrity bearing an expense you had no way to imagine before the fact. People have often played games with this kind of thing, and I don't think I can remember one winning. Even if you changed the listing text carefully to state that it is a model of an iPhone, just mentioning the name 'iPhone' in the context of selling something clearly using the details of the Apple logo and the iPhone layout is risky.
Now you can ignore every word I just said and think me all kinds of fool, but ask yourself one question (no, not that one..., I'll leave that one with Dirty Harry) Can anyone else do this, and as the answer is surely 'yes', why are they not doing it, and is there a good reason not to that they know and you don't?
If that still means nothing to you, then at least tell yourself I'm only saying this for my own pathetic amusement if you can convince yourself that this really is the only reason I'd go to the trouble. If you still believe it's a good plan after doing that, you'll not be convinced by anything I say so either way I don't need to say any more. It's a nice bit of machining, so it's not like you have no safer and better ways to profit from the ability.