I'm curious as to what tires you're using. From my experience, the higher the tread rating the longer they will last. Even with alignment issues. But, the first question is 'are you lowered in the front? Inside tire wear sounds like a camber issue and not enough adjustment to correct, if you are lowered. Stifflers adjustable UCAs are an expensive solution. I've had miserable results from XRF ball joints. I know, million mile warranty. I had both fail within 12 months. As far as the creaking, I would suspect the front springs.
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