Use percussion samples for playback and export

Hello,

I am writing percussion scores for West African percussion instruments using the drum set instrument. I only need 3 notes (a bell and two types of strokes).

I would like to use my own samples to export playbacks, can I assign them to notes in the drum kit?

I am using the Polyphone software to create a soundfont in sf2 format.

Attached is a file of a score (the cross represents a bell, and the other note represents a stoike).

Thank you very much!