Em about all the weird stuff they want to sell you for babies - I thought a lot about it all before ds was born, but then it turned out once he got here that some babies need some things and some need others. For example I thought about slings and read about the different kinds and in the end he refused to go in any of them. Actually he didn't fit in most of them at all, so it was pointless trying (too tall and thin and just folded in half in a sling).
So, whilst it's good to research what's out there, it might make sense to wait until you find out what kind of baby you get, and then order or buy things as you realise that they will be needed. With me, it turned out that a musical mobile was the critical thing that I needed post birth. I could have done with two really.
Other things that were a Godsend for us:
Tough washing machine
tumble dryer if you live in a hard water area
boarded loft so you can put toys up and bring different ones down on rotation.
These days - amazon prime really helps, as it means I can get stuff that's needed without a trip out and without much delay. Does that exist in Jersey, and do you have a longer lag in buying things because of stuff coming by boat? That might alter things.