Break apart apparel images from Illustrator PDF

I have about 40 Illustrator PDF files that each have multiple images of apparel items. They are split into 3 groups on the PDF files, but I need them as separate files in a certain format. The new files can be AI files or PSD files - each individual item just needs to be easily movable. I have attached a sample of the original file and a resulting file. The resulting file shows the 3 colors in the first group on the original file. There would need to be 2 more from that file. The final files should be 300dpi in a ratio of 2 high by 2.5 wide.