Border collie pup 2 years old in Southampton, Hampshire for sale

Hi everyone this is Simba, sadly I can no longer keep this little beaut as he is just way to much and I haven't the time to train him. He is 2 years old and still a puppy. I have had him a week as previous owners were off Facebook. He went on a trail to another family that broke down as they had dogs. He cannot live with cats or dogs but when visiting other homes he's fine! He loves the beach and walks specially to make new friends with other owners, older children over 6 and other dogs. When simba came to me he came with nothing so I have brought him a brand new lead and harness, brand new collar, brand new bed and of course dog toys and other bits. He's rather skinny in my eyes so needs fatting up. I feel that he's been mistreated as the way he's been acting lately. He drinks alot of water and pees around the place if he gets scared or you raise your voice or hand. He's very sketchy around people and loud noises. I feel simba would much appreciate a home were it's calm but he loves his outtings. When going out he must be put in the kitchen as that's what I've been told to do and he spends most of his time there. I also have cats and need to think about them. I had a border collie but she sadly died and I just can't get over here. Home checks would of course be in place and I shell want to be kept in the loop of his new home. Photos, updates and possibly visit for the first couple of weeks just to make sure he's safe and your not dog baiting him!! Thanks for taking time to read about simba and I hope he finds his forever home