Electrical question

[Big Lar]

I am in the process of installing a windlass. The instructions say to run #6 wire from the battery to the 80 amp breaker and continue wiring.

My question is if currently I have # 6 wires going into a fuse block, can I go from the main input line to the breaker thus avoiding the 15' wiring job which includes fishing wires etc.

Of course, I will not go from a fuse but from the incoming lead.