I don't see any sort of trade that New Orleans can structure to get Carmello.
It'd have to be a ridiculous 3 or more way trade and the other teams wouldn't be getting much out of it from what I can tell.
I can't access trade checker at work, but I'd think that this financially works:
David West, Peja Stojakovic, Marcus Thornton, #1 pick for
Carmelo Anthony, JR Smith
You're probably right though, you'd probably have to get someone else involved looking for a dump w/ Peja's contract, cuz that doesn't seem to be enough for the Nuggets to get back