Contract Investing

[Moruthane]

Hi all, i would like to know how i can structure an investment in to a contract rather than the asset. For example, if my friend John has an asset which i think is valuable but i have no money to buy it, package it and ship it, in order to arbitrage it and sell it to Jim, who has agreed to pay me cash on delivery. I want to therefor, get Jack NOT to loan me the money, but to invest in the contract (not the asset) for a return on his money, how would i go about that? How what kind of contract would that constitute as the contract will be upon the performance of the contract.