How much does the Substance cost?
Elisabeth purchases the Substance and would need to pay to replace the nutrition packages. How much would it cost? Also what happens if someone runs out of money to afford the Substance?
shareMakes sense to me that Elisabeth was taking part in a clinical trial, and thus wouldn't have to pay anything. Not that she couldn't afford it, regardless of how much it costs.
To answer your last question, you would have to switch to your OG body and terminate the copy. Otherwise you'll just die.