68 C10 Front Disc 5 lug conversion

[WhiteCST]

Has anyone used the 2.5 drop conversion kit from ece?
Here’s the link: https://www.earlyclassic.com/node/1211
Seems like a decent value for everything it comes with. Just wondering if those who had purchased it thought the price was worth it, or if there’s a better way for the money, or less money. Also, does this kit utilize discs from a 71 truck? Does it require anything else to make the front a 5 lug? These are all probably noob questions but I’m not very knowledgeable with suspension on these trucks and want to measure twice and cut once. The plan/hope is to purchase this kit and use 2” Springs for a 4.5 front drop. Thank you in advance for any info