The drool you have to live with, they do it when happy and relaxed and as the cat gets older, it gets worse.
As far as the biting goes, when the cat bites, scruff the cat, say no firmly, give a small shake, and put the cat on the floor. The on the floor part is important. I had a Maine coon mix that I lost recently that was a real lover, but wanted love on his terms. He would bite it you tried to put him down before he was ready. This worked wonders for me. Cats like attention, as soon as he understands the attention stops when the biting starts, your poblem will soon be over.