Hi Maxx,
You asked about Kenjutstu. One of the arts I train is Toyama Ryu Battodo which contains partner practice as one section of it's curriculum. It also puts a large emphasis on Tamashegiri (target cutting with live blades).
Also, your question about combining your Kali with other arts. I've always thought of Sonny Umpad's VCKE as a system of strategy more than anything else. Undoubtedly his art is Filipino, but his ideas mount onto so many other arts that the underlying concepts can seemingly take anything up another notch. My training partners come from very varied backgrounds, Western Boxing, Jiu Jutsu, Wing Chun among others, and every one of them has benefited from Sonny's Eskrima.
The Bagua I train interconnects very smoothly with the empty hand concepts in Eskrima, hands and feet.