I am sorry but this is what you are bringing to Thrones? Gelt and the Arch Lector need to be replaced. They are far overpriced for what they do. Pretty sure shields are illegal on BSB's. Mortars and huntsmen are useless for the points spent. You do not need a banner for gunners...They shouldn't be in combat. I would take the shields off of the halberds because you have to either use those or halberds...Take another block of infantry, wizard(s) for magic defense. Perhaps some demigryph? tarpit/flank charging knights?
Halberds can still use shields vs shooting, As above said Arch lectors are dirt cheap.
BSBs can carry shields. Huntsmen are not useless(war machine hunting/anti-skirmisher screen for my own guns). Handgunners have a banner so I dont lose the game on blood and glory if my halberds get smulched. Mortars are not as useless as you think when combined with spells(great at thinning ranks) but im not 100% sold on it.
Now thats out of the way. I dont want to go pure shooting, and the halberd unit is what I run in my current 2000pts list and it can dish out alot of pain.
I would be willing to drop Gelt but I think I will test him first. I might consider a block of 3 Demigryphs but generally you want the enemy kinda close to take full advantage of the shooting.
I think I would drop Gelt for Shadow or heavens. It would free up 100pts to use elsewhere, more handgunners maybe?
I dont wanna be "that guy" who rocks up with 6 war machines, 2 Steam tanks and 40 handgunners....