Ok. Firstly I would change fortune on the farseer for guide, cause that's going to help you a lot more than fortune.
Also where is the farseer going? With the
DA? Not with the scorpions I hope.
I would recommend getting a
WS with dual Shuricannons or Scatter LAsers depending on what points you have left afterwards. Get that for the
DA and sticking the farseer with them.
Why so many guardians? 10 is enough. And I suppose the
WL is following them. I would recommend conceal instead of embolden, but that's really personal choice. many people will disagree with me.
Hawks... loose them really. Even against hordes, they are terrible.
With the points from the hawks and the extra guardians, I think you should have enough points for a second
DA squad in shurikannon
WS.
Vypers are good, but holofields are way too expensive to spend on them.
I like the Night Spinner, good choice against orks there. Do you really need spirit stones for it though? I would loose them and save the points for the Spirit stones on the
WS.
Now, I know that
WL is going to follow the guardians around, but he will just end up getting pinned down in
CC, or destroyed by a power klaw. I would recommend loosing him for more
WW. You can also loose the spirit stones on the
WW, but again that's personal choice. If you plan on getting your walkers in
CC though, be prepared for a klaw to ruin your dreams. trust me, I tried it.
If you have enough points after all that, try to get a guide seer. Simple, only guide as a power. Stick him with the guardian squad in the back field with the
WW, preferably on an objective. That is only if you loose the
WL. If you don't want to loose him, I would recommend getting a
ML if you have the points, because you are really lacking anti tank right now. From what you've told me, it seems your friend likes horde, but you never know!
I wish you luck my eldar friend. teach those orks a lesson!
edit: consider a biting blade instead of chainsabres, that extra srength bonus can really ruin a warboss' day...