Do I really need the wire from the alternator to the bulkhead connector?

This question is for the guys that like wiring and electrical challenges, if those type of people actually exist .

I have a 5.9 Magnum running the factory EFI and 46rh transmission in my 70 Dart, and it’s awesome (for me). It all works really well but when I initially did everything a couple years ago I didn’t use an ASD relay, and I didn’t leave provisions for cruise control or AC (for those that aren’t familiar, the ASD relay powers the coil and fuel injectors). However, since I added an electric fuel pump I did run a 10 AWG wire from the alternator to the battery positive (with a 50 amp fuse) to take the pressure off the bulkhead connections.

Now I’m working to fix the things I did wrong, add cruise, set myself up for AC one day, and put the headlights on relays. So I’m redoing the wiring and putting in an engine bay fuse / relay box from a 1994 Ram. The relay box will house the headlights relays, fuel pump relay, and the ASD relay. I will still be using the factory style starting system, including the factory starter relay and NSS control.

Just like a 90s Ram or Dakota, I will be running a huge charge cable from the alternator to the relay box terminal, which then goes through a 120 amp PAL fuse, and finally to battery positive (I will probably replace that 120 with a 100 or 80 amp fuse).

I was initially planning to also include the charge cable from the alternator to the bulkhead connector, just like a factory setup, but now I’m questioning that idea. I wonder if it would be better to only have the charge cable from the alternator to the relay box, then have a wire (probably 10 AWG) from the relay box to the bulkhead. If I understand it correctly, this would provide the power to everything inside the car except for those things I mentioned I’m putting on relays. And again, if I understand it correctly, I would not need the wire with the fusible link that goes from the bulkhead connector out to the factory starter relay. Instead, I would add a connection from the relay box to the start relay (fused, of course).

What do you guys think? Should I forget about the usual charge cable from the alternator to the bulkhead, and instead run the power to the bulkhead from the relay box? If so, does that mean I can forget about the power cable with the fusible link that goes from the bulkhead to the starter relay?