Thanks all for the warm welcome. Since my original post a few days ago, I have spent many hours reading on this sight more and more about the rabbit hole I have started down. I also understand that I used the term "AR10" in my original post and I now realize that is NOT what I am building. I will blame the marketing industry on my ignorance...LOL. The more I read, the better I am understanding the challenges of this project. I am excited as it is clear this type of rifle isn't for the faint of heart (and I like that). My original thought process was to stick my toe in the water with the easy AR15 kit just to get familiar with how these guns work. Once I did that, I saw why that platform is so popular. Right away I thought a similar design in a 30 caliber would be really cool. My assumption at the time was it would be a similar project as I saw complete kits on the market. Doesn't look like "complete kits" are going to be available anytime soon (or maybe ever again).
I plan on continuing to research and shop for individual parts as I find them available and make educated decisions on components to make sure my final product runs and shoots as I expect. Will likely work on getting the complete lower done for now then make a final decision on the upper package at some point in the future. I'll probably just lurk here for now until I have more specific questions. Thanks again for not making fun of my ignorance. 🤪