I'll give you credit that it seems you have some basis for your faith in the proposed trade idea. I was a little wrong about Pau's age but with all the games he has played not just in the regular season but extended playoff runs plus FIBA and Olympic games he appears older to me than he is. I don't see him being productive much longer. If you suggested a this scenario with Marc Gasol I'd agree with your predictions to a point. I don't see anything minus Lebron or Durant being sent here for Okafor and picks, so we don't lose any current players, making this team a real contender.
Now this isn't a good example of what Pau brings to the table. He has always played a lot more aggressive and harder when playing for Spain than anywhere else. It's been a knock on him his whole career really. In the NBA he doesn't have the same edge. Also his stats this season are inflated due to the Lakers roster being terrible and depleted.
I thought I'd add just a bit about Pau. Here's a link to the ESPN boxscore for the 2012 Olympics finals. It basically included the best players in the world. The significance of this game almost goes beyond the NBA finals.
http://espn.go.com/olympics/summer/2012/basketball/men/boxscore?gameId=1172
The best player in this game was Kevin Durant. The third best player was LeBron. The second best player was Pau Gasol. Spain may have won this game if they didn't rest Pau. The game happened just 17 months ago. I think the suns training staff can get back most of those 17 months.
Now this isn't a good example of what Pau brings to the table. He has always played a lot more aggressive and harder when playing for Spain than anywhere else. It's been a knock on him his whole career really. In the NBA he doesn't have the same edge. Also his stats this season are inflated due to the Lakers roster being terrible and depleted.