Help with racket weight

Im an itf level player with a big serve im ( 196 or 6’5) i used to play with a gravity mp custom to 315 and i moved to extreme pro i want the same 315 weight and i got a recommendation to add weight in the handle from tennis warehouse university to add weight in the handle also to let yk that im 88kgs and i can move heavy rackets with no problems so i need someone who could help me figure out a setup for me