We've recently put down a track and gateway hardstanding for the horses using type 1 MOT. Doug scraped the mud back to fairly solid and then built it up so there's about 15cm Type 1 deep. We used over 6 tons for about a 15m x 1m track. It hasn't been rolled in, we just filled any holes the horses caused for the first couple of weeks and its worrking nicely 2 months on