Trigger: can and yes, was replaced with a Geisele 2 stage. Night and day.
Mags: hard to come buy. Take a number where you can.
Mid-length handguard: that's a yes.
Barrel: Plan is to enjoy the current barrel until I feel like like getting a new barrel. Nothing wrong with a lighter barrel for hunting.
Quantico Tactical's prices: yes, I saw plenty of cheaper prices, but no one had any in stock. On other hand, I know someone who purchased at $1650 and then resold one at gun show for around $3k, at the height of the run on rifles.
So, prices are relative: a $1,000 sticker does me no good if it's not available, but I wouldn't have paid more than $1,650. At the end of the day, that's what the market bore. QTS sold out, and then ordered more and sold out, so no, that's not overpriced according to the market. Overpriced is the same ol' fart who puts the same guns for sale gun show after gun show, and wonders why no one will pay him $4k for his sporterized 98k fake sniper(for instance)