If you already made it without paci, I would stick with no paci at all as it will be helpful soon.
Usually without paci, they are quickly not interested in catnaps in the evening so any form of apoping (buggy, car, sling) that catnap is fine, they usually don't get used to it, as this nap will be dropped soon.
In the evening I would feed just before bed if you are not doing it yet, but not feed to sleep. Up to 6mo I would say it's fine and usually don't create a prop. Just feeding calms a baby and it's worth doing in first months in the evening to have a baby quickly settling for a night.
And yes - pusging the routine is hard sometimes. Babies are used to old routine and it may be hard - but be gentle, push 15min every couple of days and she should be fine.