FiveM server

I am looking for a developer to create custom scripts and help me compile all the scripts I need for a realistic life in LA I want people to be able to pursue a life of crime business or work for the city as part of LAPD or LAFD.. the exact things I need first is a advanced gui system or inventory system, also a custom vehicle mod menu to allow for custom RGB coloring and upgrades, also a keys script to allow people to sell cars to other players, and a forensic script for LAPD and a search script for LAPD... as well as many many other resources/scripts down the road.