It's good that your DH knows what is important!
Great!
Just beware - "full custom" boots often don't customize the footbed - which seems to be a lot of your issues.
Also - it is a HUGE deal that you get a first class fitter, trained by the boot maker whose boots you buy. It is worth driving 5 or 6 hours each way, maybe even flying, to find one, or even making an expedition to the factory. With Avanta, a lot of people travel to the factory - Avanta wants you to be fit by a lot different procedure than most boots, by a specifically trained podiatrist - preferably theirs.
I'm speaking as a person who was misfit for full custom boots by someone who had been trained by Reidell, and had excellent references, but had not been trained by the boot maker whose boots I bought. It caused many years of pain, and forced me to learn about modifying boots in major ways. Don't make my mistake!
I know this sounds impractical, and maybe it is, but in many ways it is almost as important that after the boots are made, you go back to the same fitter to make final adjustments. If you can't afford to, go back to the best fitter you can afford.
On most things I economize. I buy discount shoes, and a lot of used stuff; I'd buy used shoes if I could find ones in good condition that come close enough to fitting to use. But full custom skates can really be worth it - if you are fit by the right person.