[WTB] Superlative .750 AGB, Surefire DS00, Magpul K2XL or Kung Fu grip

Looking for those 3 items:

• Superlative Arms .750 bleed off adjustable gas block, set screw style. Could also use a mid length gas tube. $60-75
• Surefire DS00 black. $70-85
• Magpul K2 XL or DFCO Kung Fu grip. $15

Thanks in advance!