Changes to a laravel application with survey builder

It is necessary make many few changes of larvael application. The goal is have a perfect application that work in every detail. PLEASE ANSWER ME ONLY IF HAVE REAL XPERIENCE IN PHP CODING FOR COMPLE APPLICATION, not simple web. Max budget 200$, not flexible
ANSWER ME ONLY CAN SHOW ME REAL EXPERIENCE MADE IN SURVEY BUILDER AND CHARTS BUILDER