i need moneypak help :(

okay so i'm in the middle of a deal with a guy and he'd rather use moneypak to avoid chargeback on paypal (which is fair enough)
how do i go about this deal?
from what i understand, i need a moneypak valued to $145. (thats the deal price) so that he can redeem it on paypal?
correct me if i'm wrong

thanks in advance for your help