Large Scale R/c Tanks

New desires, again and again

For years now I turn around quilt Hubert Valeri:

This time I decided, I participate in a workshop at the Aiguille en fête. Those who know this technique could tell me if my beginner's kit is correct? I took a leather dice because I feel more comfortable with a model metal. What do you think? Do you have other things to advise?

Thanks for your advice!