Ugh. Really sorry to hear that. When my father passed we spent the last 2 weeks with him at home playing music and singing songs (a big part of our lives) and getting to say whatever needed to be said. I couldn't imagine a more perfect ending for him and for me, it certainly made the grieving process easier. Conversely when my wife passed, I just woke up one morning and she was gone. That was much harder. In many ways probably easier for her but you are always left wondering if they knew what they needed to. Garth Brooks summed it up well with "If tomorrow never comes ".
Anyhow, I would do anything in my power to make those things happen . Even Skype, Face Time.....anything. I wish you and yours the best.
Thanks for the wise words. Very sorry for your losses. Wishing you all the best.