They had a handfull but sad to say they have put them up for sale
When I worked at Canton in BR days,we had 85 x 37's based there and 63 class 47's.I have been asked to have a look at a locally preserved one that has a power fault.Looking forward to that.The class 45 /46,like the one in the video,were a very heavy loco with a 1 co co 1 wheel arrangement.The first wheelset was a load bearing poney truck.For a heavy loco they had a good turn of speed,95mph max.I worked on the class 46 version fitted with Brush equipment.The 45 were Crompton Parkinson electrics but both had SULZER engines,they were used on Cardiff Newcastle trains.
Martyn