Charging system and other wiring change help needed

I'll try that link again.
View attachment 1966 schematic.pdf

Now I wanted to use this diagram as to having the battery moved to the trunk.
View attachment trunkbattwire1.jpg

OK, so I am ok to just eliminate the ballast and splice those wires together. I will redo with all new wire but that was one of the things I was not sure about. I will re read the mad article again and follow that.
Should I keep the fusible link in the circuit going to the starter relay? Or is it better to go with a replaceable fuse?

Thanks
Rod