These are very interesting factual situations. Of course, a court would have to consider all the facts of the case. If a case like this were to come before the court, and the court were to consider what amounts of money—let's say it's money—were paid in that situation, and determined that it was merely to reimburse those expenses, then my previous comments would hold. I don't believe a court would interpret that as obtaining for consideration.
If one were to pay an exorbitant amount and say it was to reimburse expenses and the court found that it was for more than the actual expenses, a court might pierce the veil, so to speak, and find that, no, in fact, this was an amount paid for the organ. This particular offence, as currently drafted, does cover situations where someone merely purchases an organ, regardless of whether the person who sold it consented, meaning even if they consented, as long as they received any kind of a benefit or consideration for it, the offence would apply.