I used bits from some cavelry from Fantasy, High Elves.
As for the Shinning Spear thing, yeah, I think you're right, and I've been told that a lot, but it still accomplishes it's role as a Farseer.
Overall, very nice job. It IS difficult to make a Farseer on jetbike. What bit did you use for the Spear/weapon?
I think this would also make a fantastic Shining Spear model.