Photoshop edit — swap products in 4 vending machine photos

I have 4 high-res renders of a glass-front vending machine. I need the products behind the glass swapped to a set layout, with everything else kept identical — same machine, glass, lighting and background. Should look like the same photo, just re-stocked.

Each machine has 6 shelves, top to bottom:

1 tray bottles (6)
1 tray cans (6)
2 trays chocolate (6 each)
2 trays crisps (3 each)

Must be photorealistic and match perspective (some shots are angled). Please use realistic, royalty-free products (no trademarked logos). Keep the same products across all 4 images.