I am into same research for my RX10 MK2. I have few options. I guess Manfrotto MV500 AH Fluid head is a good choice with good price. As slider, there are 2 options. First one is small, compact, easy to use and carry but expensive. I'm talking about edelkrone slider plus pro. Price is about 700$. On the other hand Konova K2 Slider is about 200$ but big, heavy, not easy to use or carry. You need 2 tripods etc.. However, test results of both sliders look OK.