I say go for it as well. My premier blue comet was my first ps2 upgrade I did when the kits first became available (2004 time frame?). Straight forward upgrade and a huge performance improvement.
I can still remember how impressed I was with the smoke unit performance after the upgrade with synchronized chuffing. I still have the engine today and it still runs fantastic after all of these years. Only regret was not upgrading the class lights to a color other than red.