Tools, Supercharger Rebuild Programs & Eaton M62 Video
I hear you on the pulley tool, unless you think you might be experimenting with your supercharger and changing pulleys in the future, as I will no doubt be.
Machine work on these superchargers is a specialization (like transmissions) and there're shops were that's all they do. Do a "Eaton M62 Supercharger" Google search or of even eBay, and you'll find a number of shops offering rebuilt nose cones and core exchange. Do the numbers on whether it's cost effective to have them do a bearing, seal, and pulley replacement or you after shipping, your time, and yes tools -you know they have. If you happen to live close to one of these shops by happenstance, it may be reasonable for you have them just swap pulleys for you too, but the bearings and seal are pretty cheep comparatively and worth starting fresh with -it's the tools and expertise that're expensive!
I did a search at YouTube and was knocked out by the of specific video covering this topic. Here's one you might appreciate. The guy removes the pulley (S/C removed from the car) with a generic gear puller and what looks like 200 zip ties -too funny, but apparently possible.
YouTube - Working on the Supercharger Part 1
The next YouTube video I've attached a link for is a video clearly exhibiting what I believe I am dealing with.
2 complete rebuilt superchargers were replaced and a third was about to bolted on when it was discovered a bad knock sensor was causing this racket! The knock sensor, by the way, is parked deep under the supercharger and the intake manifold and is bolted to the block

-no piece of cake to go in after. It explains why the KS relocation thread is so popular here at the forum. Speaking of tools now, I'm now waiting for the
OBDCOM USB diagnostic program for my lap top to read my ECM's code alerts for this KS or other system issues.
YouTube - Frontier SC
Best
Mark S