There is no custom firmware for your hardware yet...
Maybe some of the existing custom firmwares to work well with this hardware except maybe of wifi or BT ...
Who knows!
If you want to take the risk try them ... otherwise wait maybe for someone to do something about that!
Honestly, I could have tried flashing other custom ROMs that are available, but I cannot do so because there is no official firmware available to revert back to if something goes wrong