The last and only one on Tracker in the last year was a Vectis lot.
I've added the screen shot.
A graded 85 sold for £771 in August 2020 and a 80 grade sold for £870 in 2019 both on FB.
I hope that helps and if it's going up for sale would you please let me know.
I was in the 3-400 ballpark in my head but @Lom might have a better idea on this. Realistically I'm woefully out of touch and staggered on a regular basis what stuff goes for