New member asking for sanity check on Monitor 7

Hello, everyone! I spent the last two days combing through the knowledge here after purchasing a set of Monitor 7 locally. They sound good for most genres but some punk really gets fatiguing after a short amount of time. I understand that the non-Peerless tweeters can be to blame. Mine doesn't have those. It has the SL2000 in them. I understand there is a replacement that can be purchased and I've reached out to Polk already in that regard.

What revision are these?
Is RD0194-1 the correct drop-in replacement for this revision?
Since the mid-woofers are new (assembled in 2010), do I need to worry about epoxying the magnets to prevent slip?

I didn't get a picture while it was open, but the crossovers viewed from the MW hole appear to be different. I could only see one date that was 1988 (or 89, the last digit is smeared a bit). Is that normal or does that indicate it was also replaced?

The seller only disclosed the MWs being replaced. Unfortunately he also stated these were the Peerless tweeters. And me knowing just enough to say "i know that term!" but not knowing how to identify, took him at his word. That's on me. Lesson learned. I tried to see if we could come to an agreement to get some of the money I paid back and he ghosted me. Such is life.

As far as mods go, I want to do the tweeter replacement and crossover upgrade. I still need to read up on the latter. I know how to solder, but I do NOT know how to read a schematic well enough to know what goes where. So I'm digging for a more dummy proof photo tutorial that would help me figure that out. It's probably on the forum somewhere, but I haven't found it yet.