the good news for buyers: Deals on AR's, kits and parts are everywhere.
you can buy or build an AR as cheap as ever now. I've seen stripped lowers as low as $29.99, though a bit more is common right now.
You have tons of choices. You can buy all the parts, the tools & build the whole rifle. You can buy a complete lower, a complete upper and just put them together. You can buy a stripped lower & the lower build kit you want, some tools and build the lower, then just add a complete upper to it.
We have sponsors that will build you a complete rifle, or an upper as you want it & do a fine job. I have a 6.5 Grendel upper from SnowmanMo that's quite excellent, but I but the lower myself, for example.
Joe Bob's not only sells lower kits, some time back they made it so you can get kits without the trigger parts. Most of us like a better trigger & the military style triggers in the kit are the base level that work but we want better than. So we end up with trigger parts we don't need. Joe Bob's will let you buy the parts kit without the trigger so you don't get stuck with those parts unused, and you just buy the trigger you really want.
Or you can have a builder just do the whole rifle, including the trigger you want.
Lot's of choices, it's a great time to get it your way.