I'm usually not too big on trade ideas, but I did come up with a little something.
Portland Trades:
Jack (Nets), Frye (Nets), Raef (Nets), Green (Mavs)
Portland Receives:
Magloire (Nets)
Harris (Mavs)
Stackhouse (Mavs)
Dallas Trades:
Diop (Nets)
George (Nets)
Harris (Blazers)
Stackhouse (Blazers)
Howard/Bass (Nets)
Dallas Receives:
Kidd (Nets)
Green (Blazers)
Nets Trade:
Kidd (Mavs)
Magloire (Blazers)
Nets Receive:
Raef (Blazers)
Jack (Blazers)
Frye (Blazers)
Diop (Mavs)
George (Mavs)
Howard/Bass (Mavs)
Link
Trying it on the RealGM trade checker substituting Howard for Bass didn't seem to work. Not sure if there is enough play there or not. But I do know that the Mavs would most likely show 0 interest in moving Bass.
I would suspect that there would be some major sticking points:
1. The Nets take back a lot more than they send out. The Nets currently have 13 guys under contract so they can take on an additional two players. In this scenario they send out Magloire and Kidd but get back 6 guys meaning that 2 have to be removed somehow. I'd guess that Howard and George could be bought out.
2. George would have to agree to the deal. While initially I figured he wouldn't agree at all to this kind of a deal the fact he may be able to get a chunk of cash and then sign on with a team like Boston might be enough enticement to sign off.
3. The Mavs part with a lot of size and get none back. Kidd's a great rebounder, but he's not Diop. Possibly McRoberts could be thrown in from Portland?
4. Mav's are said to be very high on Stackhouse, I'm not sure if they'd want to part with him knowing that he'd be huge in their run.
5. Portland really is a mess at the guard spots. Blake/Sergio/Harris and Roy/Stackhouse seems manageable somewhat, but Stackhouse is going to want to play and Portland will no doubt want to stick with playing Jones, Webster and Outlaw the same way. I assume that Stackhouse could slide rather nicely into Jacks old role though.