Handling upgrade...what parts?

Firm Feel UCAs quality product, pre-installed bushings, weld plates on the bottom of the stock LCAs to help limit flex in that area. also subframe connectors you are going to install will help. If you or a friend can weld you should consider a K frame brace / gusset kit from firm feel to limit flex. just my two cents. If you have any money left over buy some adjustable strut rods with Heim ends to help with smoother front suspension travel. a member here ironside , He builds a quality product, I GIVE HIM A SOLID 10 !
search "Adjustable Strut Rods !" here on this forum and he has pics. GOOD Luck ! Tim