Custom kernel for I9506 and N9005 that supports USB OTG + host charging + ethernet, where can I get one?

[AC Question]

Custom kernel for I9506 and N9005 that supports USB OTG + host charging + ethernet

I am trying to find a custom kernel for multiple devices to support USB OTG + host charging + ethernet.
Currently I can achieve the OTG and ethernet but not the charging.
The devices are connected through a ruggerdized case to a data radio.

Is there a reliable custom kernel available that will support this or would I be better of attempting to modify the kernel myself to achieve this. I am not that experienced with modify kernels hence would rather not go down this path.
Any advice or information would be greatly appreciated.

The devices are:
S4 LTE GT-I9506
4.4.2
XXUCNJ1

Note3 SM-N9005
4.4.2
XXUGNG1

Note 8
details unsure.