Buy your first small rig. Over the winter start carving a few heads and bodies. Once you figure out what style you want, go to it. They will mean more to you later and you can pass them down to family.
I started just the opposite. Three of us found some old cork and started a rig. A few of the older guys gave me a few heads as a guide and a few decoys as a guide. Started a black duck rig, a few looked more like mergansers, but we got by with them. Still have a few around to look at... Just bought some wood at the duckboat show and will try to knock out a half dozen this winter.
Good Luck and Merry Christmas