Sure does not look like a fancy 12V generator? looks like a 6V. 12V conversions should include a Delco 10si internally regulated alternator. I can help with that.
The alignment for that generator is to line it up with the garbage can and drop it in with the VR and all wires,

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn