I tried the latter but that didn’t work out perfectly either.
I asked the second Renault dealer to order one but they needed me to pay for it upfront!
After explaining the situation they still couldn’t tell me the part number but would allow me to tell them some (I now have a spreadsheet containing many variations).
They could tell me the part they will supply supersedes one of the 2nd generation charger part numbers I have.
As I’m fairly sure it’ll be a 2nd generation I proceeded with payment.
I plan to collect it on Saturday.