Brought it out to Stam's today. It is a fun piece. Off the shelf they are pretty utilitarian. They'll shoot thousands of rounds and be reasonably accurate as-is.

Bases gun + tax runs around $220 on sale. The rifle as completed, without the $1,000 suppressor attached adds:

$260 for barrel.
$150 for trigger group and bolt upgrades.
$75 for stock.
$50 for cheap red dot.
$35 for Picatinny rail.

I also bought a color matched titanium suppressor for it, so including tax stamp, that little diddy will be another $500.

All-in, it will be a $1,300 tack driving silent son of a bitch once the final suppressor arrives. Need to get some better glass for it though.