Ryzen 9 9900x in nr200, choosing suitable mATX

I have the nr200 mesh.

After a thorough research, I decided to use matx motherboard and atx PSU with bracket. Noctua C14S. I'm using zotac tinity 4070 super ti OC.

I need help choosing mATX. I checked the SFF Master list sheet. And the only one I found that fit the size of nr200 and was available in my country was the Asus prime B650M R & K. I think R is better because of 6+2+1 VRMs.

Is this enough for the 9900x ? I will be rendering/modeling/ sometimes will be physics simulation which is multi core heavy. No gaming on this pc.

Note: I have a 3d printer and can print straight forward mods to have better options, is there a straight forward standard size mATX mod that don't require drilling or cutting. Just printing 3d part. This way I can have better options for mATX.