If you have a Moses basket in your room, you can put it next to your bed, so no need for a next to me/snuzpod etc.
Sleepyhead is not a sleep positioner (hence why it's still for sale at reputable places) but it technically does not follow safe sleep advice (lullaby trust). Some people say baby only sleeps when in one as more snug. Other people use for convenience (e.g. on sofa when downstairs), but if you have a baby box you could have that downstairs and Moses upstairs.
Perfect prep - have heard horrendous things about mould and bacteria growth.
Pump - Maybe get a manual breast pump or let down one (cheap on line - like a tenner). No point in electric until you know you can bf and express. You can hire hospital grade ones too, which are prob better unless you're going to spend a lot of money on one.
If you're mainly going to bf but perhaps occasionally an expressed bottle, you can get cheap self sterilizing bottles (e.g. mam) that go in microwave and negate need for bottle steriliser.
Ewaan etc not essential and totally personal choice. Ewaan you have to activate whereas some of the others the baby can activate by movement. Lots of people have white noise apps on phone (free) that do a lot of the same job.
Monitors - we got a good deal on the angel care so got it early but I don't think it's essential at all until baby sleeps in own room (post 6 months) as they shouldn't be on their own to sleep any time if following lullaby guidelines.
Honestly there's so much stuff that people tell you that you 'need'. It's totally personal choice as to whether it's useful/financially viable. But those companies do love to pull on the heart strings where babies are concerned!