With the additional info I think I can offer insight on what has worked with my children. I am mom, all have nursed well past this age & all were night weaned around now. We also opted to bed share, so I can promise you, you can work with sharing a room. I have with all my kids at 2. So onto actual advice.
It is firstly nice that he isn't nursing to sleep to start. That will help you in that you already know he has sorted out that he is able to fall asleep without being latched onto mom. This is really the starting point before you should attempt to get them to go all night without nursing, but you have that part settled, so you are already partway there.
Secondly, it is okay for him to tantrum & cry when you put him to bed as dad. It may not feel okay or look okay, but it is okay. All research indicates that a child that is treated with love & kindness during upset is not actually under the same stresses as say being alone in a room crying. I mean think about that in general for yourself too, we are all humans, tiny to old, when you are upset and being consoled, it feels different, even if you are acting amuck. So as dad, this can be a very good bonding experience. Your child is allowed to have feelings about changes & transitions, just like we do. He doesn't particularly want this change, but that doesn't make it a bad change, just one he would prefer not to have. As such, at these early ages of limited ability to reason, he will show his upset quite literally. If you can maintain not taking it personally, realize that his feelings are about change not about you and just help him settle, he will grow to accept this likely faster than you think. With all my kids this was a few upsetting days, then a few unhappy days, then acceptance. My husband gained a real sense of accomplishment in doing something so monumental for all of us (helping us all get better sleep) and I know it helped him in bonding with them, which is really human nature. Those people that help us through the hardest things in life tend to garner some extra love from us after the event passes. So for us (my family) we didn't do the half & half wakings, to end night nursing, we did dad handled bedtime & all wakings after that until we were done with asking to nurse. Once that phase passed, I went back to handling wakings, just never nursing during the night. Overall, the wakings stopped though. I don't think my kid stopped waking (I believe we all wake based on research) I just think they learned to roll over & go back to sleep. Once in a while I'd hear "mommmma, mommmmma" and I'd say "What?" and they would say "Just checking"...and that was that.
I mostly followed Dr Jay Gordon's theories & methods & they worked well for us. I HOPE you also find them useful in your situation. There is no "right" answer here because every child & family is different & what works awesome on one case might not work at all for another, that has been my experience with multiple kids. That said, THIS did work for all of mine for night nursing & waking. If I had another, perhaps that child would be the exception though. http://drjaygordon.com/attachment/sleeppattern.html