Is there an occasional daycare run nearby? You may be able to get DD in under the circumstances.
I had the baby on my chest a lot so that I didn't need to get up and down all the time for quick feeds, but nappies have got to be done, so calling for help is inevitable.
I guess your physio has given you a brace or tubi-grip or whatever you need to help your pelvis in the days/weeks afterwards.
This might sound silly but are they able to give you a c/s on a friday, then mayeb someone would find it easier to help look after DD over the weekend? DH brought DS1 with him to the hosp every day, and lots and lots of paper/pens/cars/blocks etc!
Don't try to rush your recovery.
Wishing you all the best.