We are putting together another Adafruit Group Buy. We have a Makersapce discount if we can make a minimum order of $250. This gets us the discounts plus free shipping.
Most items then make in house are discounted 20%-30% and some items that meet a minimum quantity (10+) get a 40% discount. Items they resell generally only has a 10%-20% discount. Send me your list of items including the Product ID and I can lookup the specific discount per item.
Typically I ask that you pay me via PayPal, Cash or Check and then I place the order. I don’t make anything on doing these groups buys and therefore don’t like carrying $700+ waiting for people to pay me back.