I know this is not what you asked for, but a lot of TF'ers like the Stanley Sharptooth 26 inch saw. It's in the $25-$30 range, So I'd consider it disposable, but boy it cuts well and is nice to use. It starts a kerf easily. It's a quality saw, but I don't know that it's worth trying to sharpen at that price, plus the teeth are set together such that I'm not sure it would be very straight forward to sharpen.