What are the specs on the stem (clamp size(s), length, rise)?

What are the dimensions of the bars (width, clamp size, drop, reach)? A photo that shows the bends better would help you sell them.

As you know, Shimano brifters are pretty expensive new, but they also tend to be harder for smaller hands than other brands. You might do better with those on a co-ed forum.

Usually if I want to price something I look at eBay. Even though I've never sold anything there, it gives me an idea of what other people are asking and paying.

You probably have a good chance of finding someone here to give your bars and stem a try, if you posted a better description.