Fusable Link

What gage of a fusible link would be suitable for the link I need for the main feed wire that goes into the bulkhead? It is the wire without the link right now.

Since I have 10 or 12 gage running from the alt to the positive side of the battery, i will splice in a 14 or 16 gage fusible link for that. Should
I keep the wire routed directly to the batt, or should I route it to the battery side of the relay next to the battery. Does it matter at all?

Thanks for all of this very helpful information.....