Decided to actually go with the original plan and run the terminals threw the AC delete plate.
Ended up using the peg towards the driveside for alternator, so i ran the cable up the firewall, under the cowl(behind the manifold not actually by the wipers, which is a good idea and i may look into that today) over the top of the booster, then down the the frame rail, along the rail and drop down to the alt.
Starter to fuse box wire i ended up changing from the way i had it. sillilar routing, but instead of being secured to the bottom of the rad support, i was able to pass some zip ties threw some existing holes in the fan shroud, so now the cable runs up and over the fans along the airlid box.
Also measured up and made the cable for the firewall plate terminal to starter cable. Didnt get a change to install however, ill do that today.