Does he just do scrap iron, or other metals like catalytic converters too?
Make a site for your brother, then write an ebook telling how to do the scap metal buying and selling business, with all your brother's contact information. You could have a members area of the site where he shares how much he is currently paying for x type metal. Make it a cookie cutter system that anyone can read and follow with sample ads, where to place them, a business card template,how to ship it via ups, etc. You could pay them a commission and have them try to refer you business from other recycling centers. Then you sell this ebook for some small fee on ebay, clickbank, CL, etc. Convert the same guide to a webinar/audio cd/dvd. Grab their emails and have a drip campaign that holds their hand and encourages them to stick with their new business idea. People are basically paying a small fee to have you train them to become an affiliate for you. Have someone translate it and add subtitles if you are looking for people in foreign countries and digitally deliver it.