So after checking out ebay and several online sellers I went with LR Direct. They had good prices for the parts but more importantly did not charge stupid money for delivery to NI.
I'm not looking forward to the fight involved in getting the old hub bolt out but that's a problem for next week.
Here's hoping they don't cancel the order or contact me saying how they need to charge extra to ship across the water. It's happened before!
I'm not going to touch the front wheel until I have the back sorted as doing so would leave the car pulling badly. At the moment it is probably crabing a bit but I can live with that for a little while.