I'm not ready to start lobbing bricks at Hooper, due to insufficient information. It sounds like the seller, Retrobikes, is a scamster. The main problem, I believe, is the whole "race to the bottom" that's taken hold, largely abetted by ebay where the PRC clones are concerned. As the prices get lower, the quality follows. Chinese manufacturers are bound by the same realities as those in any other country...you get what you pay for (unless someone rips you off). While Honda still made CT70s, the bikes weren't sold on the basis of price alone and they arrived on our shores intact. Of course, they cost a lot more than current crop of knockoffs, too.
The earliest clones were really rough, initially. But this improved somewhat after the initial production runs. The Jincheng bikes were relatively reliable. They were, of course, beset with minor failures of small parts and finish quality wasn't the greatest either, but for the most part they ran and the brakes worked. There was even some parts support. Jincheng, is also know as Suzuki of China. Over the past 2-3 years, it seems like the bottom is dropping out. I recently attended a huge bike meet where the number of CT70s & clones was amazing. I saw at least 50 people riding CT70s, most of which were Hondas. I also met with a number of dealers, nearly all of whom said the same thing...the quality level has dropped-off precipitously. Most of them are no longer selling clone bikes for the reasons you mentioned. They used to sell Jincheng, Dirt Dobber, Redcat, Rupp and other monikers until the `05 season when the problems became serious for a dealer with a hands-on customer service presence.
Personally, after just seeing vintage Hondas and at least three generations of clones parked side-by-side, the whole PRC bike picture isn't very encouraging. The only aspect that's improved (at least outwardly) is the finish on the engine cases. The smoked chrome finish on some of the Lifan engines looked pretty nice. However, along with the paint runs and generally rough finishing I noticed that this time around even the frames had visible warpage...as assembled
Even my wife commented on the crude-appearing workmanship(!)
At this late date, I have to wonder if any of the bikes built to a higher quality standard are even being imported into the US. The best of the clones, circa 2001, retailed for close to $2K. It's hard to imagine that such bikes would fare very well on ebay, for example, against similar-appearing bikes that frequently sell for 3-figure prices. No one in his right mind is going to invest money into an unprofitable product. (The $300 CT70 of 1969 would cost better than $3K in 2006.) I know it doesn't do much good to say this, but it really is buyer beware. Certainly, this thread will help avoid the known shady sellers. There's also an engine service life thread elsewhere in this forum that will consist of people's actual experiences with various models over extended mileages and that should help separate the wheat from the chaff over time.