One stop shopping plan: Schenn and Ashton (and a pick and/or someone else?) for Luongo and a package from the Canucks? The Canucks package could include a combination from the following assets: their 1st pick in 2012, a prospect, perhaps Ballard or Booth.
This would do something for the top-6 winger issue (although Ashton is still quite young), and Schenn could fit in as a top-4 d-man. The remainder of the eam needs could be filled from the UFA pool, hopefully.
Booth or Ballard have little to value in a trade, packaging them with Luongo adds little to nothing to the trade and in the case of Ballard actually brings the value of the deal down. There is nothing you can add to the trade that will convince them to deal their pick this year.