Based on my recent better understanding, you may not have to buy anything at all initially. The Wedgie Sled looks like it's not that difficult to make out of something stable like MDF. The wedges are the important part because the angle you set the fences at must be accurate and they can be bought online. However, to start, for 6, 8, 12 segment rings, standard 30, 45, and 60 triangles should work. The assembly part is certainly facilitated by the Stomper, but it appears you can make the plunger part of it. The only thing that might facilitate things are the plates on the bottom that also sold online. Here again, I would assume that you can assemble the rings with hose clamps for smaller rings and band clamps for larger rings at least to start. I, too, love to accumulate tools, but, in this case, would likely only acquire some assembly plates to start with in a few sizes I would like to start with. Anyway, the whole thread really gave me a series of resources which really helped me put the basics in perspective.