The obvious route to contention is three big man rotation and starting SF.
At last year's salary cap ($58M), the Nets have $16M of cap space. The owners previously offered a cap of $62M, raising the Nets cap space to $20M. Dumping Petro would increase the cap space to $23M. Petro could go with a #2 and $3M. I bet we could even trade Graham's non-guaranteed contract with another $3M to pay Petro's entire contract and keep our #2 pick.
We then spend $12M on Nene, $6.4 on Hump cap hold and $5M on Prince
If that is not enough to get Prince, I would dump Hump for Hayes at $4M or $5M and give Prince $6M.
If we cannot dump Petro, then it is Nene and Prince and vet min big and wing.
DWil/Morrow/Prince/Nene/Brook is very competitive in the East.