Nice! Sounds like an awesome rig...I actually buy the cheekpad/shellholders from amazon or ebay (I probably have 8-10 of them variety of manufacturers). They hold up fairly well for being dirt cheap.
This is the last one I bought for my Tikka .30/06:
Non-slip padded cheek rest, Zippered utility pouch, two Ammo Bands. Iron sight. Scope Mount & Rail. rail system. Molle Pouch. Right handed. Removable Shotgun Shell Holders/Flexible for variable size shells.