Thanks Quoth, that's very helpful. I've now managed to find a video on Youtube which shows how to do this. The audio is in Canadian French and I can't say I understood it all, but it does seem eminently feasible. I'll try a mobile phone repair shop and see what they can say.
The video's here:
https://www.youtube.com/watch?v=eZC7LeLdNYA
Edit: It looks like there's an online seller in Ireland who has replacement charging ports for the Aura One available on eBay:
https://www.ebay.co.uk/itm/303789586107. I'll order one just in case it's necessary.