Ok..I'm an absolute new to this, so are you saying I could scan the original, and then tweek the dimensions internally to create a hollow form? By doing that could I inlay the wire frame aspect in the design to support the shell?
Yes, there are a few different programs you can use to take a 3D scan (123D catch for instance saves an OBJ file) and create a hollow model. You do need an escape hole for hollow models, you can see the rules for that in the material guidelines. You can use the wireframe or sliced model as a support shell if you want, but the wall thickness rules for models should be sufficient support.
Do you know any other modelers who are doing this with wood peices, or a tutorial specific to this question?
I do not, but if you're looking for someone to help you with the models, the modeler for hire section, and the modeler needed sections are good places to start.
Is it out of the question to do large pieces, even with a hollow form? The one I most want to do is probably 3'x8" with lots of voids thruout the structure.
The largest available bounding box is for WSF at 650x350x550mm. Which diagonally is 3-1/4'. So it is possible. But being that large will be pricey.