Coke is pretty cheesy. You need something to last you for hours. MDMA should do it, plus is an entactogen. NOT ALLOW FOR THE RUN! Only for rave&sexy time.
Edit:
BTW Marge, almost forgot.
Do you know that E and other amphetamines radically cut appetite?
AND they give you a huge boost of energy to the point where you just HAVE to do active stuff.
There are basically no fat stim addicts. As an added effect, coca leaves also act as a local anesthetic to the digestive tract when chewed, further cutting the need to eat. I assume the Westoids snorting it should also enjoy some of that effect.
The price one pays for all this is quite minor