I like Plumlee a lot. Im not sure Id be too happy to give up 16 for him, but this is certainly a good option if no one we love is on the board. If we could get 29 as well that would be nice as we would have a bunch of swings in the 25-35 range to hopefully come away with some nice players. 28,29,33.
For me option 1 would be trade up, 2 would be out for someone like Gibson, 3 would be someone falls to us, and 4 would be something like this