I am a newbie too Shana. Welcome and good luck. Can't wait to hear how happy you are with the results, I know you will be.
I have been somersizing for approx. 10 years. Orig. lost 30 lbs in 3 mons., then did twenty in about 2. Then stopped on and off for years..... now back on track and down 5 lbs in two weeks and going strong.
I use 35% or 18% cream. Cream is an animal fat, so definitely not vegan. It has to be sugar free, which is probably going to be hard to find. I would just do it yourself. You can add Somersweet, or Stevia or Splenda and some nice Vanilla bean or extract. And enjoy, and to sort of quote Suzanne, you won't need much, just a small bowl, because it is so rich. Hard to think you can lose weight and eat this way, but you can. I made cheesecake in cupcake pans the other day and laughed as I ate them!