Only additional pieces needed for plan: Steve Nash, Fran Vazquez, Tracy McGrady
For 2013 free agency: $18.5 million in expiring contracts from Hidayet Türkoğlu, Chris Duhon, and Quentin Richardson. Another $6.2 million from J.J. Redick expiring. Another $8.6 million from Jameer Nelson. (That's $35 million in expiring contracts.)
If D12 leaves: We will have a lot more cap space. And we tank or start hunting for other star free agents.
Room to improve: Use draft picks to cash out of Jason Richardson. Trade Glen Davis.