Disney Comics had published during the show's run:
4 Issue miniseries adapting Plunder & Lightning
7 Issue monthly series, though #5 was an adaptation of The Old Man And The Sea Duck.
Overall I found the series to be a fun read. When I first bought each issues as a kid I never took much care of my reading material. Would have saved me money in the long run. I have all issues except for 6. Never got 6 the first time around either.
Before cancelation, the series would have expanded on the background of the characters. An annual that was planned but never written would have explained The Origin Of The Iron Vulture.