20's young DX with IDC, need suggestions

I met a lady @ clinic for treating BC years ago and we became good friends since then (we both got BC and she had IDC). She never had anyone got cancer in her family (neither males nor females).

But today I got a call from her, her 28yo daughther was dx with IDC, only finished biopsy so not much information. I read the biopsy report, it says ER/PR highly positive, HER2 equivocal, grade 2, around 9mm tumor (don't think it's accurate until the surgery)

The surgery could be scheduled in 4 weeks soonest. The girl is super scared and decided to remove both breasts with immediate reconstruction preferable, and her family fully support it.

But as it's very difficult to book the plastic surgeon, and if that's the case the surgery might need to be postponed. The girl does want to get both mastectomy and reconstruction done at the same time as both are big surgeries and she doesn't want to experience twice in short period. - we understand as 28yoshe wants to be reconstructed asap.

But it's also a risk to postpone the breast removal, at this age, also with her mom's "history" , she has higher risk factor than others.

Option 1) If they can't schedule the reconstruction soon, just do lumpectomy, see how "severe/urgent" the disease is, then they will decide when to schedule the mastectomy with reconstrction together.

For this option, if the reconstrction had to be scheduled very late (eg. 2 years later), then she might need to do the mastectomy first. - That would turned out to be 3 surgeries.

Option 2) Schedule the mastectomy in 4 weeks anyway, if can't schedule the reconstruction with it, they will do it later.

Could any ladies with similar experience/knowledge give some advices? Or even any experiences from your friends?

Thanks!