Paving slabs (Rochdale OL12)

Hi, I'm going to start a small garden project and was wondering if anybody has any unwanted paving slabs they no longer need. I'm looking about 6 large size approx 2 x 3 feet or any amount of the 1 x 1 foot. I would like more of the large size but would struggle with the weight. I am able to collect Rochdale or Stockport areas
Thank you