Sounds like great fun
Get a harness and put him on a bungee cord
That is a joke but hey it might work
If you start to act like he is not there he might get the message when you want to relax or do your business. Otherwise put him in a crate so it doesn't get to you so much.
As for biting, sometimes I think you need to embrace the biting. Get a mini tug and play with him for a few minutes at a time. Through giving the dog what it wants maybe you can figure out a way to switch it off when you want. Also these new toys with a treat inside or a kong with peanut butter inside will keep a pup occupied for a while.
Leerburg Dog Training | Bite Tug