Just to offer a different opinion... We have a 6mo and are very into frugality and avoiding unnecessary expense. There are so many things on here we either didn't bother with and haven't missed, or did buy but haven't used them:
Moses basket / cosleeper / sleepyhead - we strapped a normal full sized cot to our bed (with the side down). & when he's in the living room he just naps on the sofa. Why buy something so expensive that he'll outgrow in a few months?
Changing bag - we just use a backpack that we already owed. You don't need fancy pockets.
Lanisoh - DS struggled with latching and so I've used nipple shields instead from the beginning (the mam ones, they're great - perhaps add them to your list)
Baby grooming kit / nail clippers - I just nibble his nails while he feeds 
Monitor - he's generally always with us, but also we live in a small flat so I can hear if he cries from another room
Nappy bin - we use scented nappy bags instead and put them in the kitchen bin (not the best for the environment admittedly)
Prefect prep - only buy one if you know you're going to formula feed from the beginning
Breast pads - glad I had some just in case but I bought way too many and now never use them - my nipples just don't leak much. My advice is don't buy more than one pack of anything until you know you need it - instead get an amazon prime account and whatever you actually do need will be with you the next day!