Full bumper gets painted for around 5 to 7K from a good painter and if you want to visit some fancy place they can charge 15K plus with not much better results.
as for the light I dont know the price but only buy a genuine piece you can find new like condition in scrap yards.
your hood & fender gap needs to be realigned that might cost 1,500 to 2,500 with fitting for light depending on how much time is required.
if you need to replace any bulb, you might want to change on both sides just so one is not awkwardly brigher than the other.
wassalaam