Wolves' POBO David Kahn has made no secret about their coveting of Evan Turner and/or their impulse to move up or even down from the #4 pick. We've all tossed around ideas for how to do this; we've all read the same rumors about what Philly/NJ/Det/Whomever wants to do.
But in recent history, how have actual "draft day" deals looked (or near draft day; eg, last year's acquisition of the #5 pick by Kahn)? Maybe to get some context for what the Wolves will need to do move up, get another top 10 pick, or even what they should expect to receive by moving their pick, we can consider the past. Here's a brief history going back to 2000 of every such deal involving a top ten pick.
The Rockets sent the #9 pick (Pryzbilla) to Milwaukee for Jason Collier and a future 1st.
Blazers sent the #3 pick (Deron Williams) to the Jazz for the #6 pick (Martell Webster), #27 pick (Linas Kleiza), and a 2006 1st rounder (a spare one they had from Detroit, which ended up being 2006's #30: Joel Freeland).
Some random observations:
There's not one but two "on point" instances where a team moved from #4 to #2: The Bobcats did it in 2004 to get Okafur and the Blazers did it in 2006 to get LMA. And in both instances, all it cost was a spare 2nd round pick or some shuffling of middling assets. Looking at it this way, giving Philly the 4 and 16 would be a fairly significant overpay. Hell, if Philly got the #4 and the #23, they'd have gotten a better deal than the previous two scenarios. Similarly, when Utah moved from #6 to #3 to get DWill, they needed a mere #27 and #30 to grease the wheels. IOW, if the Wolves want to move UP (#4 to #2, not keeping #4), there's no reason they need to offer much to do so. Again, their rumored offer of #4 and #16 is very, very generous.
If they want to add a second top 10 pick, it gets significantly more costly, but Al Jefferson would seem to be on par for some of the other bigger names that have been involved in such scenarios (Ray Allen, Jason Richardson, Abdul-Raheem, Antawn Jamison...) and would probably be quite sufficient to get it done, if the Wolves wanted to.
Pure salary dumps are unpredictable.
NBA trades are unpredictable.
Don't underestimate the value of late 1st/2nd rounders; they seem to come in handy when trying to snag a better pick and/or an extra pick, almost as though it gives the team moving down a certain peace of mind, in a "we still get a young player out of this" sort of way.