you need to learn a different set of blade skills, they swings that are effective are more closely resembling a blunt weapon like a mace due to no point for penetration and mostly hard slashing strokes. without hand guards and wood handles you would be at a great disadvantage with any type of liquids making the grips slick.
Kukuri are heavy weapons for blades and are much slower in close combat for that reason but can take flat edge hits that would shatter normal knives. If i where to train i would look at the Ghurka knife fighting techniques and some of the Assamese tribal which are not on net you will have to find locals that have immigrated over to your area, look in tea business. They will be proud to tell you that they ATE the indian army…. in the end the only way to tame them was to make them eat their own people.