Building games

I would like to implement a system in which players can add onto their vehicles using a grid system, think terraria/kerbal space program. and then be able to use that image as their character in game. Does anyone have a showcase or tips to help me do this

that sounds very complicated :( i dont think its possible :( or if it is... it would require a big work

It would be easy if the additions always have the same position.

You could create the player sprite with all additions in a container, destroy all unused parts and pin all used ones.

Another option would be using an array to define the player object and it's addons and creating the player based on the array.