Dad and I are probably going to be building PSA AR-15 kits as a father son project and I had some questions. Are there any special tools needed the way PSA sells the kits, with the uppers pretty much done? Any blocks or punches that the lowers need that might not exist in a regular tool kit? Here is an example of the kind of kit I'm talking about, comes with everything but a lower. Lastly is there a resource you would recommend for how to build the thing? Neither my father or I have ever built an AR before. I think there is a little bit of stuff on youtube, but they are death on actually teaching how to build. Maybe another video platform?