Thank you so much for your great feedback @natubat, I'm sure those will be perfect as the tart tasting apples usually are great for baking, but I've never seen apples with red flesh. Let me know how yours turns out.
My friend is slowly coming off the ventilator so we're hoping and praying she's going to prove the doctors wrong - interesting theory you have, could very well be something in it!
Thanks for your good wishes - I will be writing about her again, and I hope it's going to be continued improvement :)