You can get by without a garage full of tools, but you'll need a way to cut the metal and the plastic, which is helped by a few tools. An angle grinder can get you most of the way (I used one to cut the plastic when I was using really thin stuff, that was not wanting to cooperate). You'll need to find a good supplier for the material, if you rely on what you can get at a box store you'll be paying WAY too much to be worth the effort.
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