I bought an old Singer 99 off eBay for under $100 shipped.

It only does a straight stitch, but it will punch through 3 layers of leather or nylon webbing without straining.

It's a great entry level machine for doing heavy duty work and learning how to use a sewing machine. You can hardly go wrong starting off with one because it will always keep it's value and when you're ready for something with more features you can sell it for what you paid for it (if you can part with it wink )
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