Well, that sounds like a good idea.

By all means much better than having to learn Blender first - if I had to do that then the figure would probably be ready in the year 25-25, and people would ask "Minecraft - WHAT?"

So use the tools you already know to get the best result you can achieve NOW - and fast! Before Minecraft becomes just another forgotten computer game... and your son has become a mid-aged IT specialist.

Just a thought. Best regards.

Peter