I'm NA so can't help much with SC stuff. Don't apoligize for asking questions. You are not "bugging" us. That'* what the forum is here for.

I replaced my supercharger about a year ago with one from this place -

http://www.gmusedparts.com/superchargers.html

No problems and very reasonably priced...

didnt touch the motor mount on mine, but i'm NA

No, you're Series 2, which is totally different. Let'* not confuse the issue please.

Ok.I guess I will need whole nosedrive or SC to replace.
There is probably nothing in nose cone to rebuild.
Yesterday it broke completly,belt slipped out of pulley because now pulley just hanging like without bearing at all.
I guess it just gringed out all that.
Oil leaked out and I'm afraid that saddle for new bearing is damaged.

Please discuss your SC issues in Forced Induction and try to keep this topic moving in a logical direction. This is getting very hard to follow.