Petal, sounds like you've got a pretty good routine there. Our feeds are taking a similar amount of time although we are feeding roughly every 2ish hours. She has a big sleep (3 hours) in arvo most days and another big sleep from about 10pm to about 2am.

With expressing, I'd personally wait until at least 12 weeks to feed via bottle. They are still learning and your supply is still sorting itself out. So I'd just give it a bit of time to iron out the kinks and get established. There will be plenty of opportunities for your hubby to feed down the track especially when solids are started.

ETA... Thanks petal, we were really stuck for girls names but both of us just loved Amelia. Turns out it was also DH's great grandmothers name as well although we didn't know it at the time.