Finally got there. Just over £32k for a TCR on a configurator spec of just over £38k.
Local group dealer to me, I understand there are limited sales targets on TCR models and I was their first order. The two other dealers within the group network were over £2k shy on the same deal but had orders booked already. Seems the trick is to find a dealer in a catchment where they're less likely to have demand for a TCR and negotiate from there. I shared a screenshot of the DTD offer from last week which I think provided some encouragement toward a price point.