I'm not sure all of what you are asking.
The WiFi "Connected to ... network" is stubborn. SynergyROM is supposed to have killed it but I still get it. If you find a way, let me know. As far as other WiFi notifications go, there are options in settings.
As for bloat removal, that list is all I've found and, yes, most VZW stuff isn't on it. All I can say is experiment and use sound judgment.
I used ODIN to revert to factory. Unfortunately, I could only find a VRALF2 image and my phone came with VRALG1. I did find a factory G1 kernel and modem though, just not an official, signed G1 system or complete ROM.