You should seek HELP! Immediately!
Of course when birds of a feather flock together. And when addicts associate together there is No Hope!
So do not expect any addiction intervention or assistance to quash your addiction from any of us here on the FTF who are addicts as well!
To the point! YOU ARE IN TROUBLE HERE on the FTF!
Our disclaimer: We are not responsible for any additional involved addiction that you might acquire by associating with us!
But in all seriousness I think your addiction is fantastic and it is great that you are getting the family involved is something that can give them pleasure and memories for a lifetime. It can certainly become a family activity. Remember they are our protection for the Second Amendment in the future. By loving the shooting sport no matter what area, they will in the future vote to protect it and certainly enjoy it.
Regarding building an upper we can help you on that but you will need some special tools to complete it. Like and upper Receiver Block & Barrel Nut Wrench. The Barrel Nut should be torqued to a minimum of 35 Ft. Lbs for example so a torque wrench is recommended. Most generally Head Space is not a problem when assembling from good quality parts. But there are a lot of us here that will be more than happy to provide any information you might need in the future.
Happy Building and enjoy the Reloading. Just practice good safety habits and distractions while loading.