Angela Mao: The lost Kung fu classic

[OABJYU]

There are many Kung fu films that are either lost or dissolving away in rusty film cans somewhere. With the renewed interest in Angela Mao's works (recent releases of Lady Whirlwind, Hapkido & When Taekwondo Strikes) it pains me to know that a classic featuring Angela (and would make a great shelf filler next to the above) seems to be lost to time, except for a horrible old dvd that featured a print dragged through a quarry.
The film I speak of is known as The Opium Trail in Asia. In the US/UK it was titled DEADLY CHINA DOLL. For all intents and purposes it looked like another Golden Harvest production; star Angela, co-star Carter Wong and written/directed by Huang Feng. In fact it was a Pan-Asia production, a company owned by Andrew G. Vajna, hence not held in the Golden Harvest archive. It played internationally during the' chop-sockie ' era and was distributed by MGM in the U.S.-surely a decent print must survive somewhere?