The "boot" from IND:
https://ind-distribution.com/product?sku=IND-F87-CFBoot
comes with the shift knob attached to it:
And yes, it's the same knob from point #1 and 5.
They literally just glue an oem bmw knob to an M2 boot so the stitching is blue instead of white.
It's probably your best bet and it's what i have to compliment my interior:
If that's the knob and boot combo you want, just save yourself a headache and buy it preassembled from IND.
Also, you really don't have to have the dealer install it. It takes 1 min to install it yourself. No tools are needed.
And yes, the part from point #3 is genuine oem.
Hope this helped. Don't stress so much lol.