Welcome! You should post some questions in the Performance & Brainstorming section, and lots of knowledgeable people will be absolutely glad to help.
For now, your Olds LSS has the same chassis as the 92-99 Bonnevilles and LeSabres. It'* a GM H-body platform, and though not many things are available for the suspension, there are lots and lots of engine and transmission parts available because of the popular Grand Prix cars, W-bodies, that share our engine and transmission. Your mod list is fine, but you will have to tune your car if you polish the throttle body because the MAF sensor is built into it.
Enjoy your LSS, and again, welcome to the forum!
94 STEi and 99 SLO