I got tired of waiting for a phone call from the dealer, and I called them. It's ready - just waiting to be collected. I expect they would have told me one day. The bill is £609.98, not nearly as bad as I thought it might have been. So I'm a happy bunny, and as soon as ladysolly gets home, I'll get her to take me to collect it. Or we'll go tomorrow.
... later ...
I picked up the car. The starter motor cost a lot less than quoted because Landrover paid me a substantial sum for the old one. More than I'd have expected to spend for a second hand one if I bought one.
Still, the car works now, that's the main thing.