Does anyone have experience the pre-packaged brake and shifter cable kits (for example Jagwire non-boxed "shop kits" on eBay .... cables, wire, and all ferrules for like $25, or Jagwire Road Pro Kit for about $35). I want to replace all the cables on a Motobecane Grand Touring from the 1980's (Huret Duo derailleur) 58cm frame.

Are these kits targeted for modern aero levers (sleeker and shorter length cable runs) or would they have enough cable length to fit the arabesque doodles of 1980's vintage bike's controls?

Also, is there anything I need to be concerned with regarding compatibility of the shifter cable itself to fit the Huret derailleur or are shifter cables universal? Dittoo for the brake cable for Weinman centerpull brakes?

Thanks a bunch!