How much would a cadaver have been sold for by grave robbers in 18th/19th Century Britain?

by Cirias

Just wondering how much money grave robbers were making in Britain (or indeed anywhere in Europe) during the 18th/19th Centuries? I understand that their work was very risky and they were frequently assaulted by members of the public. They would often sell to the black market or sometimes physicians/researchers.

Even a very rough idea would be fantastic! There is literally no information about this on the internet :(

EDIT: This is research for a story I am writing. Nothing dodgy!

MrUnbreakable13

Body Snatchers and Anatomy Professors: Medical Education in Nineteenth-Century Virginia James O. Breeden The Virginia Magazine of History and Biography Vol. 83, No. 3 (Jul., 1975), pp. 321-345
20-30 dollars (US) a body in 1849.