AAW/external regulated alternator

[stevenfromtexas]

ok guys, please have patience with me. i need some help with my American Auto Wire alternator wiring. i bought what i know now is an externally regulated alternator shortly after i finished my engine. knowing what i know now....i might have gotten an internally regulated. ok heres the deal....
my AAW harness seems to be for an "internal" according to the instructions.

2 big questions...

1. should i bite the bullet and get an internally regulated alternator??? if so, what years did our trucks come with them so i know what to tell the store.

2. if i don't need a new alternator and can go with mine can i run a large "red" wire from the BATT on the alternator to the positive on the battery? i have read the guys post on the conversion but not too sure they apply to my question....maybe they do, heck, i'm a rookie!!!

here's a picture of what i have ......ALSO, are the small brown and small red wires in the correct location?