RTA inpsection is to make sure the car is roadworthy
so they check compliance work and also other stuff like lights, brakes, ride height, modifications
if your car isnt modified too much they wont care. just make sure all your lights/horn/seatbelts (i cant think of anything else) work!! you might even be able to pick up a checklist from the RTA before taking it over the pits which outlines what you need to have