For me, the most lopsided part of the deal was Rutherford being able to convince Shanahan to retain 1.2 in annual salary.
Kapanen and Harrington were just fillers. I actually didn't think of them as anything remotely close to 'A' prospects.
I thought Sprong or Pouliot were better prospects and more likely parts to a deal when Toronto agreed to the salary retention. Pens obviously did well here, they won the cup with Kessel being a 1-2 in Conn Smyhe voting, they retained their best prospects, and the biggest win IMO, they got 1.2 off the books for a player that can fit into their cap to complement Malkin and Crosby.