I just tested this workflow several times with Unity. That is my goal also. Meshlab seems to do the triangulation, the reorientation of the Z axis, and the texture creation just fine. I shudder to think of the complication taking it to Maya or Zbrush (even Blender) would involve.
Since I know there is someone as eager as I am, I will expand this workflow outline so you can try it. It took me a few tries to get the parameters and the filter order correct, but the model comes into Unity like a normal obj import, texture, material and all. Stand by - should have it done this weekend.
Happy to contribute to the community here. Shapr3D (I’m pretty new to it) seems to be a good tool. But you have to have the Pro version to color the model and do the exports.