Is there a way to automatically create a grid of images in illustrator??

Hi

I need to create a grid of images for a project similar to the one in the photo below.

Currently I have been creating the grids by dragging the photos into illustrator, distributing the spacing, and aligning them however it is very tedious and takes a long time. I'm sure there's a quicker way of achieving the grid I just haven't come across it yet. For my current project I need to create a grid with 300+ photos so my current method will take too much time.

Any suggestions on how to quickly make a grid of images, automatically if possible, would be greatly appreciated.

I need the overall grid to be transformable as a whole as it needs to be a specific aswell as the photos within it. I need to be able to adjust it to the correct size and also need to have some control over the width of the spacing (white lines) within the grid. I have tried making the grid through contact sheets but there is limited control over the spacings between the photos and I can't adjust the size of them.

As I said, any help or advice would be extremely helpful.

Thanks,

Charlie