I'd be sorely tempted to rip the remains of the AVL classic wiring loom out and make up my own. I have the Electra-X diagram in the shop manual, though it is headed Bullet Electra - beware as the home market Indian model Electra was a different bike. Again the home market 350 AVL had a totally different wiring scheme from the export market 500 AVL, as it used a single phase alternator. Great, huh?
So long as your diagram shows a three-phase alternator (they might call it a magneto, which it isn't!), go with that, if it doesn't and you can't get hold of the 3ph version let me know. I will scan mine and e-mail it to you or attach it to a PM.
Regards,
A.