The Soma and Satori appear to have a raised center section and do not seem applicable to the stem type I have.

It appears Dahon Radius 5 extender and the revolve stem would allow the installation of Trekking bars (or many other standard handlebars). This solution is a little pricey for my budget ( over $100 not including new bars). I really like this solution but would have to wait to try this.

The Nitto Trekking bars seem to have the same raised center like other trekking bars. They do not have a sleeved center section as their road bars.

The Modelo Dumbolook very cool and seem extremely adjustable but they are outside my budget for this project.

I will post pics back if I can decide on the best solution for my budget and desires. Thanks very much for your inputs.