Hi,

I don't know if it's still relevant, but if you can get a STEP file on grabcad (there should be some available) it is definitely possible to convert it into a printable file with Solidworks. I estimate that it may take somewhere between 4-8 hours.

The method that usually works for me is to copy each main surface separately and then thicken it. Thickening will not always work, and when it doesn't you can try to offset the surface, and then create surfaces to connect the edges of the inner and outer surface. With the last edge patched up, you can convert it into a solid. Sometimes there are problematic areas in the original surfaces that you may have to fix before offsetting. Sometimes it helps to simply cut out an area of a surface and refill it with curvature continuity, especially as you don't need too much detail in the model.

Good luck!