Hi,
I will use eagle for this project. We can refer to LTC application note and design guide to make this board work propperly. I didn't read it yet now, but we can discuss it again over messenger.
For critical Circuit like this balancer , we have to consider the components layout, as well as thermal distribution, 10A input isn't small Value. so, I will make some point of circuit to be exposed from soldermask to enable PCB engineer to add more soldering paste to it . we can discuss more about it.
I have became pcb designer since 2012 and I have successfully designed critical PCB like Switching power supply,on board RF PCB antenna, high speed digital communication, differential pair, BGA fan out, and many more.
as long as there are propper design guide from manufacturer, we can go on. it will be better if there is available evaluation board that we can copy it's layout.
let's discuss this project furthermore over messenger. let me help you design it.
Best Regards,
Rijal