Unfortunately the left and right portion of the NavPad is reserved for preset changing, so you can't assign it to send out MIDI commands.
You can get session navigation using other keys a few different ways. I've made a Remote Script for the SS :http://www.keithmcmillen.com/projects/softstep-single-clip/
This does some session navigation, clip firing and recording.
You might also want to check out the Session Scene Launcher Device: http://www.keithmcmillen.com/projects/session-scene-launcher/
This only allows you to launch scenes, and you can tie it to other control surfaces (Push, LaunchPad, etc.).
As for the Display on the SS giving you the track name, that's doable, but you'd have to do it in M4L. Wouldn't be too hard though.
Let me know if you have any questions. If neither of these solutions look good, we can talk about some different solutions.