Building for ZXHN H367N V1.0

I have been trying to find a ZXHN H367N compatible firmware to load onto my board but failed. I found that a patch mentioning this board exists here but failed to get it to work, probably because its the first time I'm working with OpenWrt and also the learning curve seems quite steep. Is the firmware I'm looking for lying anywhere I can pull it from? or is there any guide to get me going with building for this board?