1250 Dwarf tournament list

[Melkanador]

Fantasy Army: Dwarfs

Hi,

I´m going to play in a restricted 1250 point tournament.

The relevant restrictions for dwarfs are:
- no unit over 250 points, no hero over 150 points, no rare over 140 points
- max 2 warmachines, max 1 template with organ guns counting as one
- max 20 shooters with a range of 24"+
- max 3 heros, no double unit besides core, only heros allowed
- BSB may take the same equipment as if they weren´t BSB

This is what I thought might work good:

Hero, great weapon, shield, rune of stone, preservation and reroll armoursaves
Hero, BSB, great weapon, 1+ rerollable armoursave, rune of preservation

2x10 quarrellers, great weapon, musician
2x21 dwarfs, great weapon, full command
5 hammerers
5 miner
1 organ gun.

The hammerers are to delay an enemy unit for a turn, the quarrellers are to counterattack the attacks on the dwarf warrior units.
I chose organ gun over stonethrower due to its reliable output and autohitting.

Does the list seem ok or are there any major mistakes?
What would you change?

Thanks for your input.