Sorry for the delay, but some wicked thunderstorms going on for the last hr or so.
I'm excited for you with your major reno project. It is super easy to get stressed out during the whole affair. Ideally you know and trust the contractor and it doesn't become an adversarial relationship. It's a joint project for a win-win outcome.
As for SVA, It will take care of it self, come what may. And it should play out well, without day to day tending. Best to spend your energy on your new project.
Two years from now you will look back and realize that the time spent focused on your reno has paid off with great satisfaction and the time spent fretting over SVA yielded a fleeting result in comparison.
Best advice: Breathe deeply, know what you want, convey that to your contractor, and know that there will have to be some compromises by both parties. Pick your battles wisely.