Going directly to the battery cable connection at the starter will keep the ammeter from indicating a "charge/no charge" situation. Other than that, no problem. Running a maxi fuse or a fusible link upstream of the ammeter is a good idea, one that GM chose not to use as original equipment. Lots of under-dash wiring has been burned from the lack of a fused circuit there.

Definitely DO NOT use crimped connections on high-current circuits. Solder them!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!