I found out more about the company. They are a small, startup buying agent company. They have a very nice web site. They can create items on their own site and you can just buy from their site. This would actually work very well for group buys because if you want to join the group buy, you just use your credit card to add money to you taobaobee account, and use that money to pay for taobao purchases in Yuan. Their shipping seems to be cheaper because they only calculate the net weight of the item you want to ship, not including box and shipping peanuts.
For example, if we want to do a group buy of the PLU 87 with MX Cherry Red, they can do the research to find the sellers with stock, set the price, and you just order it on their site. Keycaps would work, too.
Now I have to think of somerthing else to buy.