Suspension Recommendations
As others have already suggested, if money is an issue you should start with what needs to be replaced rather than just wholesale replacing everything.
And it depends on the kit, some have stuff you don’t need and others won’t have things you do need. The brakes also make a difference in some of those kits.
There are also a few different forum vendors that sell suspension parts. PST gives a 10% discount for FABO members. Bergman Autocraft has some really nice parts of your goal is improved handling.