The cases from China will me cost way too much because of shipping to Canada ($180+ per case).
So, I got one of these cases for less than $ 200 CDN. It's depth is just a bit too short for the Onda 8 GPU Mobo. ( I still have my dead Onda MoBo.) Anyway, I will use it with my 7 GPU MSI 170A Pro Carbon MoBo rig. There's lots of room to add fans to cool everything.
I ordered the Thermaltake Core X9 ( $230 CDN) and will try it out for size with the Onda 8 GPU MoBo. If it fits, I will buy another Onda 8 slot board. If not, I can still use it for my 12 GPU Biostar MoBo and likely put 10+ GPUs in this case.
I put together a rig with the Core X9. Used a standard motherboard with risers and have (4) GTX 1080 Ti hybrid cards with the radiators mounted to the roof of the case. Still lots of room left over. I'm pretty sure the Onda board will fit in there. I'll post some pics of the build if you're interested.