I suspect you will be shocked by Hondas price, even if a small part if its available separately. Your best bet may be used parts. Car breakers may give a good price on plastic parts that would otherwise go into the crusher or even cost them money to recycle.
If you cant find a yard that is breaking that model google' used car parts finder.' You will find several sites where you enter the parts you need (part number and maybe a description and photos,) .Car dismantlers ,possibly several, will contact you through the site with their offer price including postage. - a bit like being sent personalised ebay listings. I was able to pay using the sites own secure payment system.I cant remember which site i used.