Judging by the photo in Osprey MAA 198, The British Army on Campaign 1856-1881, the answer is yes you can use your figures.
Undress frock with buff collar, no facing colour on trefoil pattern cuffs, buff coloured valise equipment, standard home service trousers and leggings. From the photo the helmets look like they've been dyed/stained a buff or khaki colour. The 24th had facing colours on the cuff, that's about the only difference but that's just a matter of painting.