This is a really interesting challenge & I do like coffee & cake he he. You should also check out @sergiomendes' #hiveisrealmoney challenge if you haven't already. You could enter in that if you have already done this type of transaction.
Best of luck to you! It will be interesting to see if people awaken more vendors to the amazing world of Hive! :)
Thanks @pixiepost I'll take a look. 👍