I went with the traditional Boer red and green colour scheme for the Boer wagons. For the general service wagon I went with vallajo military green. Having only found pictures of general service wagons in this ww1 Green colour scheme and having found no data in my books as to the colour of the British army livery during this period I went with what I could find.
Some of the pictures of the Boer and general sevice wagons that I used for colour reference can be found at the following links :
General Service Wagon