Dutch, I don't know who doubled your quote, but I could buy almost THREE superchargers for that price.
In the pics you ask about, my superchargers are that clean because I run water injection.
On the rebuild of the back end, your needle bearings are cake if you know how to drill and tap, have a grease gun, and have a hydraulic press available.
The OTHER end is NOT. I'm an accomplished machinist (among other skills) with all the right tools at my disposal and the skills to back it up. I've rebuilt more superchargers here than anyone, and I was the first here to do it. I live, eat, and breathe Eaton superchargers.
And I'm telling you that your odds of success are very slim considering your nosedrive end rotor bearings are TOAST because the supercharger ran out of oil, and the chances that you can successfully even take it apart are so slim, it'* not even worth talking about getting it back together.
So you can buy all your parts and take a very real chance of flushing the money and having to buy another SC, or you can order another through www.canadiansupercharger.com
for less than HALF the $1200 you posted and get it right the first time.
I personally wouldn't rebuild your supercharger if you paid me $500 and gave me the parts.