so i just built another sniper2. suggestions on stuff?

[bluemidget123]

i just built myself a new sniper2

2k1 r/f body (will be switching out with a 2k1 VERT feed body when i buy one. gonna get the feed milled off and threaded for a ccm no rise)
black dust shocktech slide frame
black bob long torpedo reg (replacing with DYE hyper2)
16'' Pipe Kit
Freeflow tungsten hammer and ivg.
Black delrin Orracle bolt (replacing...)
SP mini drop and on/off
WGP pump kit
stock valve

the only thigns i want to change are the body, reg, valve, and bolt. i know what body and reg i want. not sure abotu the bolt and valve though.

i was thinking a Freeflow valve and either a Freeflow, ST supafly, or CCM bolt. recomendations/suggestions?