Well, just five months after writing to claim for the damage to my wheel, I've received an offer from the council to meet my replacement costs in full, but not the repair costs, because I did that myself and haven't sent them a receipt.
I'm tempted to write out a receipt on a bit of paper and send it to them, but I guess I have to accept that in the end I haven't lost any money.
They've also resurfaced the road where the pothole was.
Still, it's a good job I didn't decide to get the wheel rebuilt at a shop, otherwise I'd have been carrying even more cost over the last 5 months.