Yeah, for sure, if you would prefer to just give pointers, I'm not gonna refuse any help I can get! I'm going to slowburn this project anyway, I just started higher education (again) and I have a moderately-sized Backerkit campaign starting in... 3 days (No Panik at all!). So I'm kinda strapped for time right now, but I will probably have much more time on my hands during the spring and summer.
I just put this thread and project on the wire pretty early because I think it really benefits from the longer timespans in the planning phases.
Honestly, all the ideas you have are very cool (doing a digital 3d roller app + maybe some VTT plugins would be cool and a good way to get the dice out there). I personally use Affinity currently, but good thinking with the Inkscape and Blender angle. I'm familiar with both, but not very proficient with either.