Please review the rules you agreed to when you signed up for your account here. In particular:
Rule 2: Don't double post. If you have something to add to a conversation and you're still the most recent poster in a thread, edit your earlier post.
Rule 7: Some of the things you're asking are good questions. But the way you present those questions in this particular post isn't the right way to ask. General discussion of frost gear is fine. Personal advice for reforging your own character is not fine. This is not a help desk.
Rule 9: Don't include your armory link in your post. We can see who you are in your profile to the left.
It looks like it works out well though.
You don't need much more than 2100 Haste as long as you stick to rotation and play well. Not wasting resources etc.