Ouch, Owwww...ow and general twisting and turning and moither. This is definitely one of the downsides of Home Education!
The problem is you have the opportunity to fall in love with other HE people and their families. You spend so much time with them. Your kids love their kids. You learn so much from them. You get to know them so well. You're in and out of their lives and homes. It becomes a part of one's own life. Then sometimes, for very good reason, they have to go.
You twist and turn. The move would be great for them. It is the right thing, clearly. It would solve problems that could not otherwise easily be solved. They will be happy in the new place. It will provide them with exactly the right opportunities. And yet....Whaa...Sorrry, I am crying.
JFT...DOOOOONNNNNNTT GOOOOO...and that applies to you too...SP and family. New Zealand is a lucky country.