I'm a big believer in being over prepared and not needing something than the other way around. I had an unplanned c-section after finding LO breech once I got to the hospital in labor, so I didn't get the chance to plan for this. He's our first, so we didn't have the older kids to worry about, but we have two dogs that needed looking after. I called and made arrangements for boarding while in my hospital bed recovering! They stayed there until we got home from the hospital and DH did as you're planning, coming and going during the day and staying in the night. It was a big help.
A lot of how quickly you recover and therefore how much help you'll need is going to come from how active/in shape you are before hand. I worked out throughout my pregnancy with a trainer (I hadn't worked out regularly until I got pregnant). In fact, I had a session the night before going into labor. As a result, I had really good ab strength and was able to sit up and get moving pretty quickly.
I think what you've got worked out is a great place to start, just go with the flow, though, if things have to change.