I'm not a chaos dwarf player, but this is what I would have done.
First, I would have dropped a reroll. You've got four, but for what?
You've got block and even dodge on the guy that will dodge, so I think you'd get by with three rerolls and that drops 70k of TV.
Is there any point in taking the mino at this point or is that TV better used on skills for the core guys?
I wouldn't take the mino. Too much risk for 150k in TV.
Should I deck out the dwarves with guard unless I get doubles? Should I wait for a doubles for claw before taking mighty blow?
A dwarf with guard and mighty blow is a good dwarf (unless you ask Heff).
If you've got the money and all the other dwarves have normal skills, there might be a point in sacking him for a rookie.
What does the BT/Dodge bull take next on a normal? Block? Sure Hands?
It seems like you're using this bull to score and in that csae I'd go for sure hands.
Personally, I'd carry the ball with a hobgoblin and would have given the bull block.
What does the BT/Dodge bull take next on a double? ...?
Jump up or side step maybe. I'd skip a double for block
What does the block bull take next on a normal? Tackle/Strip Ball for a sweeper / sacker? Mighty Blow for a killer?
Why not go for break tackle on both bulls?
Is it worth taking anything skills on the rookie hobgoblins? Tackle?
I'd take sure hands on one hobgoblin, but otherwise I think wrestle and dirty player are good skills for them