First of all, don't worry too much about percentiles - these can sometimes be a bit off. I was expecting a 10lb baby (97th percentile) and was induced early as a result. The induction didn't work and i ended up with a semi-elective csection (not emergency but not planned either). I'm actually having my 2nd csection (elective) later this month.
On recovery - take it as easy as possible. Follow all the advice on not lifting, bending etc but try to get balance right on moving around too - will help you recover quicker. No hoovering!!!!!
Use maternity pads along your incision for a bit - helps keep dry, feel supported & will also help identify any leakage, infection etc. I intend to do this again for a couple of weeks but have bought a csection support band to use after it.
I've made myself up little boxes for toilet & ensuite with maternity pads, baby wipes & spare pants just so that life is easier. Keeping things you need handy around house (up & downstairs) will help.
Keep on top of pain meds & take lactolose at first to help with painful bowel movements.
Support pillows in bed & a good quality nursing pillow (even if not breastfeeding).
Slip on shoes!!! I also found I needed my husband to help me put on pants for first couple days or so.
A pillow to support incision from seat belt in car - esp on way home from hospital.
I was told about possible trapped wind after surgery resulting in shoulder pain - didn't experience myself but heard peppermint tea helps.
I'm sure there's more so I'll pop back if anything comes to mind.
My experience of the surgery itself was that it was a lovely, relaxed way to meet my baby - I was ravenous after so take lots of snacks!!!