Just some opinions.

1) The provider should show you a real example of the finished products. He should have a phisical catalog.

2) You should take some decisions. Some psicological studies show that if one people only has one option, "take or leave it" he is usually more happy with the choice of having that, than other people that is shown many options. I would call that "The what if syndrome" Inclusive you can end with nothing at all.

3) You are the costumer. I don't think any one would make they're own pizza to simulate the flavor of some brand, or construct a car to simulate one. Ask for samples, go to a supplier on your zone and see, go to a decoration store and take a look.

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Regarding your original question yes, that can be simulated with the help of a good 3D artist, using phisical based materials and physically correct lighting and render engine.

The problem is... Is the provider going to provide you with the index of refraction of the materials, the specifications of the thickness, reflectivness, transitance, etc? The diffussion of the printed surface, the color profile, the type of dyes used?

I do not think so. So the artist could use... a phisical sample!

Now you need a physical sample and pay to the 3D artist, which also need to model the lighting conditions and the room itself.

If it is a big project it is cheaper doing that simulation. But I do not think this case is.