Right behind you
I hope you get to do all those things, building guns is a heart warmer. You'll feel as though it stays with you all the way to the pine box or to a special kin when you're finished with it.
I too love my AR, built just after the election last year. It is a CMMG lower with a Smith&Wesson M&P 16in upper, carbine handguard. I put the A3 stock on it like I had in 73 in Fort Ord, CA., complete with the trap door and cleaning kit. I've got crap hanging all over it and change things up all the time. It is my first black rifle and only the second time I've shot the 5.56mm cartridge, the first when in the Military. I've only got 300 saved rounds that used to be a 1000 but I keep dippin into it! I've also got a 1911A1 that gets squeezed a lot.
Still, I shoot my BP weapons most of the time. I don't have a rifle yet so never got involved past pistol in CAS but now one is in the works: A Kentucky Long Rifle, flintlock, also my fisrt as the rest are all percussion.
I'm also kind of a holster nut and go through a lot of trouble to acquire or make at least two choices for each weapon and for the favorites all three, shoulder, hip, and thigh.
By the way...Here in Ca there is a 10 round max on "assault" rifle mags plus a magazine lock because my rifle has several "evil" features. Even if I had enough ammo they would get me trying to reload.
I'm not retired yet Muzzle but I may not be far behind. An old Colt revolver or even some other, what a thing to behold! The engraving, the stories....a damn nice way to spend time with these things I think is good...