Necron/ Tau 1000pt Needs a lot of advise. Please help

[The Captain]

40K Army: Necrons

Ok so its a bit of an exaggeration but I have a game with my friends coming up on the weekend and have no idea how to set up the army as there are a few points to consider.
1) There are 4 players (including myself), I'm Tau/Necrons, then there is a Tyranid (Who seems to prefer MC's and shooty options), Orks (hordy but loves ramming with his transports) and Blood angels (with a player who is scared to assault and sits back shooting)
2) Each player builds a 1000pt army, then one the day we roll to see who we pair with. Other than that it will probably be a 2v2 battle, last man standing.
3) We are all relatively new to collecting so we dont have a wide assortment to collect from, I know the Tyranid player has a couple of broods of gaunts and gargoyles, and has just spent up big on a carnifex (I'm suspecting a dakkafex), and zoanthropes and i'm almost 100% certain he will field a Flyrant with bone swords and TL Deathspitter. the Ork is heading towards hordes and transports, and the Blood angel only has the Black reach starter set, a Baal Predator and a couple of assault marine units.

In order to prepare for everything I have come up with

Necron Overlord- Warscythe, Sempiternal Weave, MSS (To try and tackle the Hive Tyrant)
Destruction Cryptek- Solar Pulse

5 Warriors- Ghost Ark
5 Warriors

2 Tomb Blades- particle Beamers
3 Scarabs (anti-vehicle or tarpit)

Doomscythe (Magnetised so could be a NightScythe)
Annihilation Barge (Weapon is magentized so could be switch to CCB if it would better suit)

Allies
Shas'El- TL Flamer, Burst cannon (purely to keep costs down)

6 Firewarriors

Broadside Battle suit- MT (to handle the ork transports or Blood Angel Transports)

Thats 999 points. I think its very lacking in troops and i'd love to find a way to take more. I have another 10 Necron Warriors, 14 Firewarriors, 10 Kroot, 2 crisis suits, Ion hammer Head, Rail hammerhead, another Tomb blade and a couple more scarab bases.
The more I look at this the more I dislike it. Please all advise will be greatly appreciated.

Sorry for the huge amount of text.

[joebloggs1987]

Personally i don't think you have enough bodies. 2x 5-man units of Warriors just isn't enough.
Also, im not sure that the Tau are bringing anything to benefit the list that the Necrons can't already do.
If it was me, i would be dropping the Tau allies to buy some more Warriors.
The Annihilation Barge is great in lower points. I basically auto-include 3 of them in anything 1000-2000 points.
If you are running the Overlord on his own, i would consider a Destroyer Body.
Try to get a Lord or Cryptek in with the Warriors too (if you are adding to the model count).

Its up to you if you keep the Tau in there or not, but either way i would be considering dropping something to try and fit more Warriors in the list.

[The Captain]

Well originally I wanted to field extra Troops from the Tau, The Broadside was only a back up. As for the Destroyer Lord, They can't take a court so I'd be missing out on Crypteks. But I agree I need alot more troops. I guess dropping the Broadside could let me field a squad of Kroot. Thats another 10 models. Ok they dont have the benefit of Gauss, or the range of Firewarriors but I can use them to counter assault if needed. I dont really need the Scarabs either... maybe once i get some Spyders to back them up... That could give me a couple of warriors.

[The Captain]

Ok so now I have too possible options.

Pure Necron
Overlord - Warscythe, Phase Shifter, Sempiternal Weave, Resurrection Orb, MSS
Harbinger of Destruction- Solar Pulse
Harbinger of Destruction

5x Warrior- Ghost Ark
15x Warrior

Tomb Blade- Particle Beamers

Annihilation Barge
Doom Scythe

Or Hybrid

Necron Overlord- Warscythe, Sempiternal Weave, MSS
Destruction Cryptek- Solar Pulse

5 Warriors- Ghost Ark
8 Warriors

2 Tomb Blades- particle Beamers

Doomscythe (Magnetised so could be a NightScythe)
Annihilation Barge (Weapon is magentized so could be switch to CCB if it would better suit)

Allies
Shas'El- TL Flamer, Burst cannon (purely to keep costs down)

7 Firewarriors
10 Kroot

The first option has better HQ and more Crypteks, but still lacks troops. The 2nd loses HQ reliability for More Troops

[kobold2001]

Why even go with Tau as allies at all? It looks like all the Tau will bring to the table is the anti-tank ability of the broadside. Six firewarriors won't last long, and the Shas'el is fairly underpowered. I'd just buy more Necron Warriors. Those things are frustratingly impossible to kill!

[The Captain]

Its really just the Troop numbers. If it wasn't for the Firewarrior+1 I'd just take the Kroot and the cheap commander and then make up the numbers in warriors