No crying now, it is not that bad. The 11 months would be the 80% number so if your application is not complicated you will most likely be in the faster 50% and it should take less time than that. Most cases that take long do so because immigration is worried that the relationship is not genuine but married with two kids I doubt it will even cross their mind.
Your husband can not officially move to Canada until he gets his PR, however, there is nothing that stops him from "visiting" Canada with you as you move with your Canadian children. As an Italian, he does not need a visit visa and he can stay in Canada for up to 6 months without the need to extend his visitor status. He will however not be able to work until he gets his PR.
My advise, apply outland through Rome now. Show plans to move to Canada, job offer if you have one, plans where to live, where your kids will go to school, support letters from relatives who will help you get settled etc. etc. If he doesn't have his PR visa by the time you want to move, let him go with you as a visitor. He can take some short courses to pass the time while he waits for his PR visa. Once he gets his PR visa, he goes to the border and gets his PR status and then he can work.