I meant to reply sooner, but the afternoon got away from me and then I ended up reorganizing the whole shelf by my desk instead of doing the one small task I planned.
I think your idea makes sense, especially the part about keeping the plan simple so nobody has to guess what happens next. I usually overcomplicate these things and then regret it halfway through.
If it were me, I would start with the shorter version first, see how it feels in real life, and then build on it if needed. That way you can notice what actually helps instead of committing to something that sounds good on paper.
I can look over it again tonight if you want. Just send the latest version when you have a minute, and I will give you practical notes instead of vague opinions this time.

I think Saturday should work, although I may be a little late if the earlier errand runs long. I finally cleaned out the hall closet and found the notebook you asked about, along with three pens that somehow disappeared last winter.
I agree that a smaller get-together sounds better than trying to organize something huge. It leaves room for real conversation, and nobody has to spend half the day figuring out where to stand or what to bring.
If you want, I can take care of the playlist and keep it mellow at the start. I know everyone says they do not care about that part, but the moment there is awkward silence, suddenly it matters a lot.
Send me a quick list of who is definitely coming when you know, and I will plan around that. I would rather have something low-key and comfortable than overbuilt and exhausting.