A few tips on how I painted and based him are in the video.
Torso- Baal Predator
Head- Baal Pred or Stormraven (I forget which)
Shoulder Pads- Sanguinary Guard
Jump Pack- Sanguinary Guard
Right Arm- Death Company
Left Arm- Command Squad
Legs- FW Character Upgrade Kit w/ a wing piece from the Death Co box
For details on the basing, go here.