Whilst that bike may not be bargain of the year, it's still a respectable bike. Hufy did make some highish quality bmxs. And seeing as huffy bought that frame from the people who made lots of other companies bikes there's absolutely no reason to let the Huffy name put you off.
Redline cranks are perfectly good 3 pc cranks.
Fishbone pedals were most likely made by the same people who make all the other ****ing pedals out there.
Redline have good hubs, and **** hubs. From that distance I don't know what they are.
Lots of riders run Rhynolites.
Oh yeah, it's a 7005 series al frame. Cheap frames are typically 6061.
Personally I wouldn't buy it, I don't trust al frames let alone forks.