There a couple of things that stand out for me in your vlog. One you have 9 acres of land that will let you do the things you enjoy but somehow I get the feeling deep down you would like to do more and are restricted by land size.
The second is a desire for a home for your growing family. I don't think it is necessary for the comfort and safety of your family that you require a tank of a house. Think about the future. In a very few years, your family will be grown and they will want to stretch their wings and fly from the nest. Perhaps not far but they will want to. Then you and mama-pepper will have a home larger than you require to be comfortable that requires lots of upkeep. Are you following my drift? I am older, been there and done most of these things.
I think that there is a solution here, you just need to talk it over with mama-pepper and pray a bit more. One possible solution is to acquire a bit more land. Put a mobile home on it until you are ready to build something more suited to your lifestyle. You love the animals and the food they provide for your family. This is one way to have both.
Or you could stay where you are, build a smaller home and expand the land by buying another piece close to you. I have been in the position of building several homes over the years and have downsized each one. You would be surprised how little space we use each day.
There you have it, @papa-pepper. My opinion for what it is worth. I will keep you and your family in my prayers while you wrestle with this decision.