Bill,

I don't know that I can offer much more help, but it looks like Jerson and Dave have some excellent leads. When you mentioned seven segment displays from Futurelec, it rang a bell. I had a project last year where I needed 3", dual color seven segment displays and I got in touch with the manufacturer in China. They have even more options than what Futurelec offers and you can buy from them directly if you wish - be warned they don't accept credit cards (at least last year), so you have to do a bank transfer, which somehow cost us ~$40 bucks and shipping was about ~$25, but for the quantities you're talking about, it might be worth it. Regardless, they try to be helpful so if you have questions on their units or need a datasheet you can e-mail them and they usually get back to you by the next day. Their website is: http://www.nb-flying.com/.