In my kendo years I have once fought against a Skopjan kendoka and I won. That kendoka was really big that he sent me flying away.
Even Kung Fu Panda learned Kung Fu and it didn't matter its weight, same goes for Kendo. ;)
Good luck!
Hiro is right to ask you considering losing some weight, for you want to be extra fast in footwork and in handiwork. You'll understand why, once you progress it much further.