Ok, so after purchasing what I thought was the correct parts, it turns out that they are not correct for various reasons (3 door model not 5 door model and front light switch not rear light switch...)
So, part numbers I am after are:
Anthracite rear interior light switch (currently have a grey one, but got my headlining re-trimmed so want this to match)
3 door drivers side window switch unit (I bought a 5 door model one and thought I could just swap the switch covers, turns out you cant...)
Finally, I purchased a replacement armrest cup holder for the rear seat passengers, but I think I am missing a small "cog" that allows the unit to smoothly open, like how the glovebox opens slowly.
Many thanks to anyone that can help :)