Well I thought I would share the modified razor, in case others would like to have a go.
Sheep's foot shaped using a slitting 1mm disc, and cooled with water not to destroy the original heat treat, then final shape using a belt sander.
Edge was raised to slightly thicker blade stock, re-ground, and 20 degree either side mirco bevel for strength.
The handle is seasoned hazel, bark left on for rustic look. Just to note, when doing simple handles like this, choose the comfortable section of the stick (in both left and right hands), before cutting and fitting blades.
The curve of the handle matches the blade, this is meant to be blade forward, as requested for leather work.
It is not the prettiest knife I made, rustic was the request and feels good in the hand. Nice small project
Cheers
@Tengu