You didn't say anything about your experience in building other kits in your post, so this may not apply to you. I certainly would not start my building on the kits you are referring to. I would build some other (cheaper) kits to get a feel for many of the processes, then graduate to the costly kits you have. If you are an experienced builder with other sizes/types/mfgr kits, the others have given some pretty good tips already. I am on my second build currently (Sig Hog Bipe) and take it from me, no matter how good the instructions are, you will run into obstacles that only experience can help you solve. I have become quite frustrated at different times while building. And in some cases, have had to make simple repairs in addition to the normal building steps as I go along. Everyone that I have talked to has said pretty much the same thing. You get better each time you build something.