actually, you do not really need Le Nez Du Cafe to learn how to cup.
of course, our company has one set that I bought from SCAA few years back.
however, exception of some educational teaching purpose, we hardly never use them at all.
if you are just starting to learn cupping, I do not think that you will pick up no more than 3 flavors at first.
when you practice, you will buy a certain region coffee from certain country. they will have their own basic characteristics. As example, coffee from huehuetenango, Guatemala will have pronounced acidity, chocolate, sweet floral flavor. (you can get this general flavor info from basically anywhere, in internet or sweetmaria...etc)
then, cup them as many times as possible and try to pick up the flavors and compare them against what you find from other experts.
then, buy Antigua region coffee, compare with huehue. again, try to pick up distinctive Antigua flavors.
then, buy Acatenango (well, Acatenango is very similar to Antigua, so ...), buy Coban which is very very different than any other coffee in Guatemala.
I am sure that you get the picture.
then, move on to other countries, such as Ethiopia, India, Indonesia...etc
it just takes time and thousands of practice of cupping.
I am a tennis coach. when I teach, i have kid hit same forehand hundreds of hundreds of times. TO BUILD MUSCLE MEMORY, they call it.
Cupping is same way, you have to do it over and over again, so you will immediately know the taste by your memory.
I am in the business, so I cup more often than a lot of our forum members, but I must say that I am still in beginning of stage, specially when I talk about other country coffees.