Well since your profile doesn't even list state or providence, it's hard to make suggestions. Since you stated Kijiji, I'm guessing Canada, where and how far from the boarder, of the US, unknown? I would suggest states or cities to check Craigslist or eBay. You may want to check the trading post and if any are available near you, then post or PM the sellers.
Personally never had an interest, but seem to remember either LEER or A.R.E. stopped production a few years back as it was such a low sales item. I'd check there websites directly. As for your Honda dealer, there was no OEM Cap, only an OEM Tonneau cover, and there are several aftermarket covers from soft roll up type to hard tri folding type, those may offer similarly to what you desire for less cost & self installation options.