Jayinhk, this is for you - you wanted a young sheng cake off taobao, right? Hopefully you will settle for a brick. I have talked to this seller
before and they have gotten some tea from them before. They have been very good about service:This 2011 Baichantang brick (357g)
(in case it doesn't come up, the brick is called "艾砖五代青砖") was quite enjoyable and reasonably priced at around 150 RMB. There are also some places selling it for 10-20 RMB less, if you want to save a dollar or too, but i have had a good experience with this shop. Again, not sure we have similar tastes, but i liked this tea, solid smooth kuwei, dense, good staying power. Also, ordering a tea like this mitigates your fear about fakes because nobody is faking brand new baichatang bricks. If you order something like Dayi or Zhongcha, fakes are significantly more likely.
Anyway, the service from that vendor has been good, but I have only ordered their Baichatang teas. I have no idea about their menghai factory and other offerings.