Do you really have that much money? The only 3D laser scanning I have seen demonstrated only guaranteed accuracy to +/-0.008". I am sure in most instances it would be more accurate than that. But no guarantees. You can use a probe attached to a machine to do overall measuring. In both of these cases, the result is what is called a point cloud. From the point cloud, you have to have pretty robust software and computing power to gather the actual measurements. You could also do probing on specific features, but the programming can get pretty complicated. I want to know what is wrong with manual measuring done with basic measuring tools?