Suppressed .22 Pistol

I am looking to build the quietest possible .22lr pistol for $1k (not including stamp tax). This is what I am planning but would like to hear your suggestions as well:

Host: Ruger MKIV Tactical (model 40149) $525

Suppressor: DeadAir Mask .22/5.7 $450

Also, I am planning on running CCI subsonic ammo but would like to hear your suggestions regarding subsonic 22 ammo as well.