I’m sorry I didn’t read your post more carefully. I think getting a lot of details this early on may be difficult for you, which you already said.
It has only been a few days since Adobe released what was needed for Lightroom and Photoshop to properly read the GH6 Raw files. And Adobe has known about the GH6 for months. It would be simple to say, “Go with the V plus because it’s the newest and greatest and most likely to meet your needs and get upgrades“. But I’m not the one purchasing it, and honestly I don’t know what the price differences are. So I guess I appreciate your question and it’s challenge. Hopefully some others with more info than I had will chime in.