First off, I am not trying to offend anybody with these comments. Please don't be. Just stating my opinion based on my past experience with the product.
I had one of those kits from long ago when they first came out,...don't know where it is, but I couldn't find it. I was going to see if there was any way to use the standard cut latex with it. I suppose it will show up at some point,...probably in a box in a corner somewhere.
Here are my honest thoughts on that product. It was a good idea when it came out, but the mouth call making process has gone far beyond what that kit can do. In my opinion, you will quickly see its limitations and outgrow it,...at least that is what happened to me. My advice is to not get too invested in materials for that kit. I still have latex, frames, and tapes for it lying around somewhere.
Having said that, you might find that you can make calls with the kit that fit your calling style purrrfectly. However, I am betting that you will want to move on from it fairly quickly.