You already have the R180A in the front so you don't need to change any sensors there. You are either changing the gears or the entire diff, either way you won't need a sensor in the front unless you have a broken one.
In the rear, if you are changing to an M226 axle then you will need new sensors cause they don't interchange. Your best bet is to find a complete M226 assembly that comes with sensors and brake components/ rotors etc. Cause those are all different from C200K. You will also need the wiring harness that goes into the e-locker. I ended up getting a new M226 axle but it did not have the brakes or the sensors so I had to source all the missing parts myself.
In terms of drive shaft, no I didn't need to change it. It fit perfectly, we did have a discussion about it here on the forum
https://www.thenewx.org/threads/c200k-with-arb-vs-m226-with-e-locker-axle-swap.261129/#post-4108050
There's some good info for you in there. I suggest you do your own research about that since some have different flanges that I can't remember right now.