The Celestial DVD case claims that ROVING SWORDSMAN was made in 1980, which surprised me as it felt more like the slightly tired efforts Chor Yuen was producing a few years later - popping over to HKMDB I noticed that it's listed as being from 1983. This makes much more sense to me - apart from anything else, it would explain why Ti Lung was looking a bit old in the film (that man really did age fast when it caught up on him - he looks 10 years older still in A BETTER TOMORROW).
Also, the on-screen credits listed the writer for the film as Huang Ching I think - which I thought might be Wong Jing. HKMDB has the writer as Chun Yue (3), aka Chin Yu. Anybody have more info?
HKMDB also mentions Wong Pau Gei as co-action director, but I only saw Tong Gaai in the credits (I didn't study the credits properly though).