Where to get leaf springs

[PaRedneckRiders]

Looking to buy leaf springs for my project and not real sure where i should get them from.
I am running DIY4X's B52 kit up front and the shackle flip in the rear so what im looking for is probably a set of 52" front springs and 56" rear. If anyone is using these kits with longer springs and didnt have to move anything let me know, i would like to go with the longest springs i can for flex and ride quality. But i need a set of 4" springs too equal roughly 8" total and looking for a place to buy them.
I see i can get them from Skyjacker i think they would be part numbers CR14S and CR24S.
I also see that ORD sells tuff country springs or i could buy directly from tuff country.
Im just not sure which company has the best spring. I considered buying springs from alcan or similar companies but im not sure how much they would cost compared to pre-made springs. So what kinda springs are you guys running and what would you suggest for me both length and company too buy from.