Such an excellence initiative, it will definitely makes steem popular! And concerning the club status I think a medium can be created, maybe a new Steemit account where buyers and sellers will used to perform transaction. You as the initiator can hold the keys to that account, When a consignment too place the buyer will send the agreed amount of Steems to that account, when he/she received the product and it's in line with the specifications, you can then release the Steems to the buyer in the wallet he or she preferred. This will not affect the sellers club status at all. Just keep it up bro!