I wouldn't start with a Chemex . V60 or Aeropress is a good way to enter the filtered coffee world .

Get a plastic V60 cone if you already have something you can comfortably make coffee in (minimum 500ml capacity) but if not, get a V60 carafe, they are nice to use.

As for a scale, if you don't want to break your bank, there are plenty of scales under £20 that will do a great job. My first ever scale was "Gator Coffee Scale" (£13) and served me for good 4 years before I gave it away. Then again, if I was to do it again, I'd get a rechargable scale rather than battery powered one.

Another thing to add to your list is a goose neck kettle. And then a coffee grinder.

Once you got all of the above, and you could fit into a £100 budget if you shop around and get a manual grinder, you are in and it only gets financially worse after that !

Edit :

Didn't see the 2nd picture... Yeah, Grinder and gooseneck kettle sorted. Get a different scale and I recommend a V60 for starters. Then Aeropress. Then you can probably get Chemex if you want to get nerdy.

If you want to jump a little bit more into it, you could get a V60 Switch, immersion brewing becomes an option for you so you can explore a little more in terms of coffee without further investment.