Chamber of Commerce is a crock, it's all about getting local companies to join the "club" (which anybody can so so long as they don't mind cutting a check for the "dues")
Contacting the local BBB is a better way to check out a company, but still not a sure thing.
I googled their physical address, and came up with their website as the 1st hit, the second hit was their listing on the napco4x4.org parts vendors website.
The best way to check out a new vendor is to find somebody who's done buisness with them in the past. If you cant find somebody, then do a google search on their physical address as well as their company name.
Doin' the google on the address will tell you if that address is shared by numerous other company names, usually a sign that the outfits mailing address is in a office building, or worse, a Mailboxes, Etc "front".
Doin' the google on the company name will generally reveal other places the name has been mentioned.
In Rico's Rods And Relics case, the name comes up quite often, in websites listings for parts vendors, as well as on personal webpages and numerous message boards.
If after all that research you still feel a little nervous, make a small purchase of under $100 or so and see how that turns out.. since all repro parts are not created equal.. they could be on the up and up as far as shipping you what they say, but their repro parts might not be up to par.
With that said, I like their $116 chrome repro AD bumper, and feel confident about this outfit after my research to buy it if I dont run across one locally (read original & cheaper) soon!
