Thank you! Finding some parts are difficult where I live but I won’t give up. I feel rushed to get this all done with what may be coming.
Did you get a stripped lower or complete lower?
Not sure what CA law is, but you should be able to have most of the parts shipped directly to your door.
Here is a good summary of compatible parts.
https://www.gunbuilders.com/blog/the-ar10-vs-the-lr308-parts-guide/