I would run this:
Firebelly, General, lvl2, Lore of Fire - 155 Pts.
8 Ironguts, M, S, Lookout Gnoblar, Standard of Discipline - 384 Pts.
2 Mournfang Cavalry, HA, Ironfist, M - 150 Pts.
3 Maneaters, HA, 3 x 2xHw, Scouts, Stubborn, M - 178 Pts.
Gnoblar-Scraplauncher - 130 Pts.
Total: 997
I have my leadership 9 (no rerolls sadly)
I can handle hordes which will take up 50% of the pts in an opponents list by outmaneuvering them with the mournfangs, and blasting them with the scraplauncher
I can put presure on an opponent from turn 1 and combo charge by turn 2.
Against mobile enemies I have magic missles and the scrappy.
And I have a ld9 bus for my general which can inflict so much pain that at 1k I should hold steadfast against all but the toughest of enemies.
I always build a 1k list from an army that I do not plan on playing (usually empire) so to put that into perspective.
Wizard Lord, Lore of Shadows - 175 Pts.
Warrior Priest, General, Shield, HA, Ironcurse Icon - 101 Pts.
29 Halberdiers, M, S, 10 Crossbowmen - 237 Pts.
29 Halberdiers, M, S, 10 Crossbowmen - 237 Pts.
Great Cannon - 100 Pts.
Mortar - 75 Pts.
Mortar - 75 Pts.
Total: 1000
Merc a list like yours would have to be something along these lines
Slaughtermaster, Lore of The Great Maw - 250 Pts.
Bruiser, Sword of Striking, Ironcurse Icon, BSB - 150 Pts.
8 Ironguts, M, S, C, Lookout Gnoblar, Standard of Discipline - 394 Pts.
3 Maneaters, HA, Scouts, Swift Stride - 162 Pts.
1 Sabretusks - 21 Pts.
1 Sabretusks - 21 Pts.
Total: 998
It's not a particularly scary list IMO, sabertusk are easily shot/spelled down I could converge my entire army (or with empire a 30 man unit) against the small ME squad and kill them on turn 1 and then all I have to do is avoid your main block or mortar/cannon it down. There aren't enough attack angles. Basic tactics (detachments vs tusk) (Halberds vs MEs) (cannons and mortars on the main block) eventually it will be the entire army vs 1 unit and granted that unit is scary, it's still just one unit. And I can guarentee these match ups.
I would simply deploy in the following manner:
==B===B==
=H==C==H=
==M===M==
Or I could move the crossbows to the outside of the Halberds if that will give me a better shot at the cats either the main block is eating cannons and mortars every turn we have equal chance to cast/dispel so it should have an equivelent effect on the game, 30 halberds will win agianst 3 MEs and your only choice is to come at one of those units with a crippled IG bus.