nissanlog

Hello,
I have a 92 sentra 1.6L. When I drive at low speeds, the front end makes all types of noises. It is expecially bad when going over paved area that have dips and aren't smooth. My CV joints were replaced recently. I am thinking it is due to the front control arms from reading other posts. The floor vibrates on both the driver and passenger foor area when I hear the noises. I read the Haynes manual about removal inspection and installation. How hard is it even to inspect the control arm bushings for wear? Where is the safest place to put the jackstand or jackstands (the Hanyes manual calls for jackstands). As mentioned in previous posts, it says not to replace only the bushings but the whole control arm for this year. But others have seemed to successfully just replaced the bearings. I live in an apt complex, so I was just wondering if it would really be feasible to just replace the bearings or would it just be easier to replace the whole front control arms for about 145/each control arm? Also my local nissan shop quoted 200 dollars per control arm part, and said it would probably be an hour to change just one control arm. So if I went to have it done I would spend about $600 with tax with labor at $70/hour. Thanks for reading the long post, and any advice/pointers would be great.