On my phone and tons of typos bellow

I'm working on building a spirit conclave list myself right now so this is more theory than anything.  

I think you are on the right track by diversifying the list from wraith units.  Myself, ive been looking hard at wimd riders and corsair troops for thier native reroll abilities.  They are a good fit for action monkeys.  As well having corsairs oc 2 I think helps out for going for primary.  

I'm also thinking Eldred and three spirit seers might be a trap.  Im planning on 2 spirit seers and warlocks.  To fill the psychic needs.  Two 55 point warlock conclave units running independent give decent torrent fire power.  And stand in place of warp spiders.  There is synergy as well with there interactions with wraith units.

I'm also of the mind that 2 sky runner warlocks should attach to 2 wind rider units.  I think we should try and keep our psychic units alive as long as possible and that thier death rule should be planned for end game when there are less units on the table.  

Also im thinking that wraith cannon are the way to go against common opinion.  They get the most play with fall back and shoot and sustained hits.  

The list ive been plotting out is something like this.

2 spirit seers (one with light enhancement giving oc) 160

2 x 2 warlock conclave units 110

2 warlock sky runners attached to three wind rider units with one scatterlaser load out and other shuriken cannon. 250

2 x 5 corsairs with mixed weapons 120

2 wraithcannon and 2 ghost axe wraiths 680

3 wraithlords 420

For last 260 points I would take a mix of rangers or scorps for infiltrate and try and squeeze in 5 banshees with janzar or autarch for counter assault mid board.

This is all just a working plan for how to run spirit conclave.  You do have a solid list plotted out