Mummifying a northern pike head

My dad caught a good eater (34in) today and he's going to let me have the head to mummify after fileting it. What's the best way to go about this. Do I use salt or borax? Is the brain going to be something to worry about? How often would it be good to change out drying material.

My dad caught a good eater (34in) today and he's going to let me have the head to mummify after fileting it. What's the best way to go about this. Do I use salt or borax? Is the brain going to be something to worry about? How often would it be good to change out drying material.

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