Sorry Jesse, whilst I admire your enthusiasm, it will be become a total nightmare where someone will suffer a huge loss. Stickers, stubbie holders and caps would be all I would have up for sale.
Mewbie here
my 2c worth on this subject
what you do with the t/shirt hoodie and cap etc orders is only once a year you put out an order form with a bank account for the payments to be made into then at a set date all orders will be placed then they will be available for pick up or for buyer pays for postage
Just a thought
( I used to be the secretary of a car club that done it as above and worked very well )
Jason