Need help to complete my list

Hi guys, it's yet a couple of games that I'm using this list, and I'm really happy about it, I even get some important victories against good players, but I have some spare points and I totally can't find anything useful to complete the list. All the thing that i tryed were not good IMHO.
So here's the list


DARK ELDAR HQ

Lahmia on double cannon venom

TROOPS

2 x 5 Kabablites with blaster on double cannon venom

2 x 5 Kabablites on double cannon venom

ELITE

5 Trueborns with 3 blasters on raider with nightshield

FAST ATTACK

5 Scourges with 4 hw blasters

7 Reavers withe 2 caltrops and arena champion (general of the army)

Raider with nightshield (wraithguard vehicle)

ELDAR HQ

Autarch on bike with mantle, laser lance and fusion gun

TROOPS

3 Jetbikes

ELITE

5 Wraithguards (on DE raider)

FAST ATTACK

5 Warp spiders



So I have 12 spare points, but what to do with these? I've yet tried shock prow (totally not useful, raider are going to die in a couple of turns) and a second Lahmia (two are like one, they do nothing), but i didn't like them.

I was thinking to give shredders to kabalites (too short range), adding a trueborn to the unit (1 more wound to protect the blaste, but one more dead when the raider explode) or adding an exarch to the spiders (BS5 but nothing else).

I even thought that I could substitute the Lahmia with a Medusa, but i need some more points: in yellow you can see some things I can take away easilly from the list to get some more points (change a lahmia with something else, remove the fusion gun, remove a reaver), but then I'll have spares again! XD

That said I would like to have some advice to how completing the list and of course even some comments on the list itself.