Thanks everyone,
I appreciate your responses, which have been very helpful. I think I will go with a 5-6" vise, probably a Wilton bought on E-bay. The bullet vises are beautiful but even used ones are well beyond my price range. I need to get moving on this so I cannot really wait to find one at local auctions or barn sales. Thanks for the suggestion of the Sawyer, Iloco, but I think that vise would be too massive for my set up although I well understand the value of a heavy massive vise.
Thanks again everyone for your insights.
dave