Print colored PLY


I want to print a colored ply file with complicated structure (a bunch of pipes). I tried to extract the texture map in MeshLab, but then the program crashes.
Is there a way to directly print a ply file format?
Second, I want to print this structure inside another transparant structure (this can be uploaded a second 3D file). Can anyone help me with how to set this up?
I'm planning to let it print by ShapeWays.