Ah - of course, I forgot about his surgery. I don't know if some of the other senior site staff can help - but my point was that taking the initiative to make the donation first will show goodwill that will doubtlessly translate into some alternative arrangement for providing the product.
Just looking at this differently than a store purchase situation, and more of a "here's my commitment to SOH, can someone help with the fulfilment" approach, may open some doors - just my perspective.
Good luck!
dl