Replacing UDIM tiles of a VT in unreal engine Material

The texture coordinates of the first UV tile(1001) is extending from 0 to 1 in horizontal and vertical directions respectively. when extended to more UV tiles, the value keeps expanding. this is what we will be using to replace the UDIM tiles in this method

This is the UDIM set up of my bat mobile

A single VT is covering the whole car with different instances for further control

I can replace each UDIM with the following material function that I have made

The following is the node network inside the material function, It checks what value of U and V we are currently on and replaces the pixels with the new image

Following is a simple example