Thought I'd chime in... I bought this kit from eBay recently.
I''ll start by saying that I've actually designed and built several non-radio kits for my own business. I was unable to get this one running.
Engrish aside, the design is very interesting and easy to understand. 4 parts were missing, including a couple "irritating" to fine.
Once I sorted everything, I had a spot-on carrier with no modulation. I troubleshot the obvious culprits for a day, and them binned it.
I have no doubt that the design is worth the money, but missing parts from an overseas shipper suggests a certain level of "I don't care."