If the above instructions don't seem to help. I own the AGI video on how to build one from a kit. Unless you have some machining and TIG welding skills, you may want to leave this build up to the pro's. They don't go together easily like an AR15. I am also in the process of building a clone. Though I have never dealt with any of these guys personally, the common consenses are that these builders listed below do outstanding work and also provide great customer service.
(In no particular order)
Ohio Rapid Fire (ORF)
Investment Grade Firearms (IGF)
Arizona Expert Arms (AZEX)
Arizona Precision Arms
I'm not pushing either one of these guys, but be aware that Ohio Rapid Fire has been doing a lot of group builds for ARFCOM members and additionally have quite the presence in these forums. I encrourage you, should you decide to have one built, to give all these guys a fair shakedown as you won't be dissapointed with whomever you choose.
HTH