I did add a dual z at the same time although the orbiter extruder is very light, much lighter than the stock stepper and extruder.

The ender 3 dual z kit on Amazon for ~$25 or so works great on the neo, and I highly recommend getting a synchronizing belt kit if you go dual z.

Here is a link to the dual z kit I used on my NEO https://www.amazon.com/gp/product/B08PP9XQP5

I got the belt syncronizing kit from aliexpress https://www.aliexpress.us/item/3256804792595837.html