Yes the bushings need to be replaced, use OEM rubber not poly if you want a smoother ride. Yes use a 4X4 shop for that and I would suggest a good adjustable upper control arm to aid in alignment. I have seen heard of a lot of the cheap ones going bad or not allowing attachment of cables to line up, I used NAPA and mine were perfect and a dream to switch out. Just an FYI you can let a 4X4 shop do most of the job. I would recommend getting a lifetime alignment from one of the national chains as these cars may need it often enough to make it a good investment.