Consider using photogrammetry instead of laser scanning. I’ve talked to several boat yards which use it to capture the shape of decks, etc. For patterning and similar I recommend the type of photogrammetry which generates the 3d coordinates of selected points, usually applied targets. Other user selected locations as round spots, lines, sharp edges and circular can be used with some limitations. Required equipment is a digital camera, software and a computer. Procedure is to apply targets, take photos for multiple locations, process photos on the computer, and export the results to Rhino.
My recommendation for software is PhotoModeler. www.photomodeler.com The points generated in PhotoModeler can be directly exported as a .3dm file. It’s also possible to generate curves and basic geometry directly in PhotoModeler but I find exporting the points to Rhino and then working with the points in Rhino to be most efficient. Any computer which runs Rhino efficiently should be sufficient for PhotoModeler.
An alternative to PhotoModeler has been a plug-in for Rhino called RhinoPhoto. Its capabilities are limited compared to PhotoModeler. I checked the RhinoPhoto website today and it appears not to have been updated since last summer. Also, it said a version for Rhino 5 64 bit is “coming soon”.