okay so let me explain a few things about mutaplasmids 
- They are all manufactured and highly specialized.
- Filaments are likely to be mutaplasmids.
- They are nanobots capable of reproducing biological behaviour. (both way)
- While it is true the mutaplasmids we got access to only interact with materials properties, It’s also true that we only got access to mutaplasmids that do such things.
I made a few biologists run some research independently and they all came to the same conclusion (the only variable was the “is this a good idea” which is very subjective).
There is nothing preventing creating a mutaplasmid recreatind a body only with this material.
That’s why the pure infomorph route seem the most obvious for me.
With this technology you can have an entire population stored in pure infomorph state, requiring only energy (hello isogen 10) and hardware, wich you can manufacture at will with the mutaplasmid.
When you need a body, you simply program a few mutasplamids cells to “print” a body made only of other mutaplasmids cells.
That explain everything.