I'm also looking for a Custom ROM, Android 5.1 or higher, currently running Android 4.1.1.... for my Proline Rockchip rk30sdk DuelCore 10" Tablet, Kernel Version 3.0.8+ ... that I can install manually due to not having a pc. I have already root it successfully with Kingroot. If I can find a better Kernel upgrade, that would be an even bigger bonus. I would greatly appreciate all advice and help. Thank you in advance, André.