Congratulations on your Persuader. Does it have a medium (32 inch) scale? You came to the right place for advice on care and feeding of an Alembic.
For the brasswork, there are many cleaners that will work. Others in this Club will no doubt have good suggestions. But I have had good results with Flitz metal polish. You can get a little tube (all you'll need) at any hardware store or you can order off the Alembic site. Follow the instructions, but I would add - use the stuff sparingly. A little will do the job. Once any excess dries into the nooks and crannies, it's a devil to get off.
Be sure and post some pictures of your new acquisition. If you don't, a couple guys named Paul will start nagging and complaining.
Congratulations again and welcome!
Bill