Agree with Mr. Barker here. For the type images needed for range finders, a 35mm will usually do the trick. I don't have the Leica type cash outlay available, but my Zorki is quiet, dependable (when it works), and takes great images with the Jupiter series lens.
For MF, I shoot with a C220 for critical work, and cheap ZI 6x6 Nettars for hauling out and taking pictures of the kids.
Now serious landscape work is done in LF, outside this discussion.
I would keep the Broncia and see about picking up a good 35mm for your handheld work if that's within the requirements spec.
tim in san jose