Please don't get angry...
Just trying to offer alternative solutions...
Perhaps with the change in life status you see coming, it would be in everyone's best interest (you, Alaska, the animals - health/wealth/& well being) to down size to ONE herd, ONE breed, ONE buck, and 4 to 5 of the best does, for your new start in AK? 

You could then do one simple structure to house them and separate the interior of the barn into 3 sections, one large for the does and 2 smaller (one for the buck, the other for you/feed/hay/tools/etc.), and have outdoor pen access from the two inside pens with goats, to two pen areas to hold the goats? When kidding time comes, you can let the potential moms use your section inside as a kidding area.
The smaller barn will hold heat easier in the winter months (8+), and help the animals keep warm better. It would cost less to build. It would also have a smaller footprint on the land, leaving more space for larger pens.
Once you get all situated in your new home/life/environment, you can re-build your herd as you and your SO decide is acceptable; adding more animals, more breeds, bigger barn(s)/pen(s), etc. Though it will hurt to let all these animals go now, it will ease your (& Alaska's) mind during the move and transition, save lots of $$, as well as simplify getting re-established there. It will also help Alaska to ease into things with you and the new animals/living arrangements. There are other animals involved with this as well with the dogs and cats and whatever else. Alaska is going to have a huge adaptation coming as well as you and your animals. As I recall, he's a "city" guy with no animals... BIG changes coming for him also.
I can understand his new found trepidation and worry... He's going to be taking on a huge financial "load" when you and all these animals arrive. Speaking as one who has been married twice and been engaged to women with kids/baggage multiple times... When you arrive, you won't have a job or be able to help support the new "family unit". He's going to have to carry the biggest part of all costs associated with this change in status for both of you and then maintain that support as you get re-established. It's not like you'll be the only one "giving up" things to make this new situation come to exist and thrive. You'll both have to let things go and pick up new things and adapt as you go.





You could then do one simple structure to house them and separate the interior of the barn into 3 sections, one large for the does and 2 smaller (one for the buck, the other for you/feed/hay/tools/etc.), and have outdoor pen access from the two inside pens with goats, to two pen areas to hold the goats? When kidding time comes, you can let the potential moms use your section inside as a kidding area.
The smaller barn will hold heat easier in the winter months (8+), and help the animals keep warm better. It would cost less to build. It would also have a smaller footprint on the land, leaving more space for larger pens.
Once you get all situated in your new home/life/environment, you can re-build your herd as you and your SO decide is acceptable; adding more animals, more breeds, bigger barn(s)/pen(s), etc. Though it will hurt to let all these animals go now, it will ease your (& Alaska's) mind during the move and transition, save lots of $$, as well as simplify getting re-established there. It will also help Alaska to ease into things with you and the new animals/living arrangements. There are other animals involved with this as well with the dogs and cats and whatever else. Alaska is going to have a huge adaptation coming as well as you and your animals. As I recall, he's a "city" guy with no animals... BIG changes coming for him also.
I can understand his new found trepidation and worry... He's going to be taking on a huge financial "load" when you and all these animals arrive. Speaking as one who has been married twice and been engaged to women with kids/baggage multiple times... When you arrive, you won't have a job or be able to help support the new "family unit". He's going to have to carry the biggest part of all costs associated with this change in status for both of you and then maintain that support as you get re-established. It's not like you'll be the only one "giving up" things to make this new situation come to exist and thrive. You'll both have to let things go and pick up new things and adapt as you go.