IMO you aren't going to get much if anything out of the AFE Bladerunner on an LBZ. It was designed to improve the LLY as an alternative to using the LBZ inlet, that's why it comes in 2 pieces for the LBZ. For over $200 it definitely isn't worth the marginal gains you might get - at least in my book. As far as noise the aluminum pipes are supposed to have a louder whistle but I only ever see them come with open filter type intake kits - so between sucking in hot air and the aluminum transferring more heat into it it doesn't make sense to me at all why someone would want that. I prefer the closed box style intakes like Banks and S&B and if you add a scoop it's even better. DrHolliday's stock turbo LBZ makes all kinds of turbo whistle with an S&B intake, Diamond Eye Downpipe, Flo Pro 5" exhaust with muffler, and my tuning. Everytime he pulls into the shop other customers there comment on how much whistle it has.
Since you did say you weren't worried about performance at least look for a used kit - people are always selling them to go to real cold air intakes.