| Look in your yellow pages under heating for companies that make ductwork. Most of them stock stainless and copper, and have the tools needed to cut and shape it, generally charge just a fraction of the kitchen specialty supplies. You could do the wrap-around for the front edge yourself, but I'd at least find out what the Tin Shop would charge first. You could also do a molding of some type for the front edge, but wrapping the stainless would probably look nicer. No reason you can't make your own support if you are comfortable with that kind of work. I'd use a marine grade plywood so it doesn't de-laminate, make just the tiniest bit smaller than the adjoining counter so that the dimensions will match once the stainless skin is on. Better that the stainless is a little lower than a little higher, since the edge may turn out a bit sharp. Most stainless is heavy enough that you won't have to worry about the grain of the ply showing through, but try to use nice smooth wood just in case. I'd paint the bottom and sides of the support with primer and an exterior grade latex to help prevent water damage-- cheap insurance. Wouldn't paint where the stainless will rest, may effect adheasion. Once the support piece is as you want it, take it to the tin shop and ask them to make a skin for it. Would be wise to take it to a couple of different places since some places tend to price gouge for what they see as a needless luxury. I'd have the skin done so that it slips on like a glove, but I'd take it home and install the support, coat with a thin layer of something like liquid nails, and slip on the skin. I don't really think you'd need anything as demanding as contact cement for this sort of application, especially if the stainless is a heavy gauge. | 
