My Death Knight has not long turned 80 and i like tanking with him i have 2 main questions. Before i start here is my armory link The World of Warcraft Armory

1/ is my build ok what am i doing wrong, and noone say DW because i like it when i get enough g will take a second spec which will use a 2hander

2/ i know my gear aint great that is work in progress but any good sujestions on what gear to aim to get so i can tank HC (i know the ideal is 540 def for uncrittlable)

oh and an extra question
3/ what chants whould be best to get

thnx in advance