Bulkhead bypass vs ammeter bypass

I’m rewiring the whole car because everything was trashed :)
The bulkhead connectors crumbled in my hands as I removed them and the wires were cracked and bare in some places.

I want the stock stuff to work, just want to protect the new harness however I can. Oh and I already have the higher current alt.
Well, if you're putting in a higher capacity alternator, I would go ahead and bypass the ammeter.