First of all, sorry to hear about your loss.
Secondly, this is the only thing which is best to be replaced from Honda dealership as the windscreen available in outside market mostly results in light spreading during the night drive. There is no thumb rule for identifying the originality of the windscreen, so it's best to get it replaced from the dealership as it matters a lot.
The rest is your choice.
I hope it helps.
However, I really don't understand about the price that you're quoting as one of my friends got the windscreen replaced of his Honda Civic 8th gen.. (Reborn) some 2-3 years back from Honda Avenue on Islamabad highway and it cost him around 12k with fitting.
For Honda City, it has to be less than that based on the difference in the size of the windscreen of both cars.