Slider for FS7

[Dreadlington]

I have an FS7 and a Manfrotto 504HD. I want to get a slider that will work with the camera but it's a tad heavy - about 4kg with a lens probably. I guess I can't have it mounted to the tripod only because it would bend, so I'm happy to use it with an extra couple of lighting stands. Which one would do the job? Obviously I'd rather it be as inexpensive as possible but mainly it needs to be up for the job.

Im based in England so I don't think the Rhino slider is an option.

 

[Alpha Beta Omega]

I've been using a Slidekamera since 2010 and it have proved to work great and still does. Loaded it with 5D, AF100 and F3 cameras and different Sachtler heads. I think maximum payload is around 20kg.
http://slidekamera.com/slidekamera-hsk-5-slider-basic.html