That's kind of how I did it, too. Though I used Illustrator to make the splines and lofted them. I was using a 3/4" path when I guess I could have extruded it and just specified .75 inches. The whole thing was a learning process for me - that program is waaaay more complicated than anything else I've used.
But I think I did fairly well
Example (this took forever to make, BTW

)
It is a great way to visualize what it will all look like, and to see if all the parts will fit.