C-section recovery varies massively I think, both of mine were very easy despite being emergencies (to the point of not needing any pain relief post spinal) and I could have managed without any help. Hopefully your wife will be on that end of the spectrum.
I watched my 2nd child come out (they dropped the drape completely) and it was amazing. Assuming there is no reason why they wouldn't allow it, I'd absolutely recommend. You can't see anything gory.
Also if squeamishness is a factor, distract her from the theatre lights as you can see everything and it's a bit odd, especially as the iodine looks a bit like blood in the reflection.
I found getting up as soon as I could really helped (and quite possibly prevented me having any trapped wind pain). With both of mine I was up within 5-6 hours of the surgery. Also she needs to try and walk straight rather than shuffle, it pays off quickly.
For home
Along with pain relief, she needs to keep taking vitamins
Encourage/remind her to roll out of bed, don't go straight up/down.
Nappy change baskets: cotton wool, water bowl, jug with water in it (or wipes), cream, nappies ideally next to wherever changes will take place. Obviously it varies from woman to woman but I would have struggled with my dh doing all the nappy changes due to a few issues I had regarding my first section/subsequent NICU stay.
Feeding basket: snacks and drinks for her, cushion perhaps, muslins, blanket for her and baby as it's getting cold. All within handy reach regardless of feeding method.
Don't let her hoover, the midwife told me off for doing that in the first week.
Cook or have easy to throw together ingredients/meals planned.
Hope everything goes well for you both.