Sayagaki Translation

[C0D]

Hello i tried to translate this sayagaki but i could only manage the "mumei Kanemitsu" part, could you please help me with the rest?
 

[SteveM]

冨嶽不重君恩重　鴻毛不軽臣命軽

 

It seems to be a suspicious rendering of a phrase one of the 47 samurai had on his sword

Ōishi Yoshiō had engraved on his short sword the phrase "万山不重君恩重 一髪不軽臣命軽"

(Duty is heavier than 10000 mountains. Life is lighter than a hair)

 

In the phrase on the sayagaki, the "10000 mountains" has been replaced by "Mt. Fuji" (Fu-dake), and the word "hair" has been replaced by "goose feather". The phrase on the sayagaki uses variants of some kanji that aren't in use in Japan. 

 

The last picture would be a name: Fuji Honzō (冨士本藏) or another possible reading of the given name is Motokura.

[C0D]

Thank you very much Steve, this is quite interesting sayagaki