Ok your warboss is ok and the big mek should have a bosspole then your HQ would be ok. However, I would take anotehr unit of bikers to support the other unit.
Trukks are really weak and easy to put down so I would drop these because you have killa kanz and deff dreads which will be left behind, use the walkers then to form a kan wall to give your boyz a cover save, though if you do this then a KFF would be better with the big mek.
With the trukks gone you'll have only one for the burnas; which isn't brilliant. So change these for lootas and you've got more anti tank. Then switch the warbuggies to dethkopters and you've got a foot list instead of half.
Trukks are really weak and easy to put down so I would drop these because you have killa kanz and deff dreads which will be left behind, use the walkers then to form a kan wall to give your boyz a cover save, though if you do this then a KFF would be better with the big mek.
With the trukks gone you'll have only one for the burnas; which isn't brilliant. So change these for lootas and you've got more anti tank. Then switch the warbuggies to dethkopters and you've got a foot list instead of half.