On the Lead Adventure forum there was a discussion on plastic Frostgrave Wizards (and making them from the existing plastic kits).
This one is built using the Cultist sprue for the body and heads and the arms (and boat hook/two handed weapon) from the Ghost Archipelago Sailors. The Cultists sprue also provided the accessories. The boat hook has two pieces from the knife and fetish component, the knife is attached to the figures front behind the staff. There will be a bit of Greenstuff work to secure it.