1. Do not use uprev for displaying, great tool for tuning or diagnostic but not for daily display.
2. Stock bands are not worth viewing, aftermarket is more accurate and probably faster.
3. Camp2 cannot tap into this, plus side for the camp2 is it can monitor a lot downside is a lot of what it can do is via extra sensors. Especially since this car is not boosted from factory you need a boost line, pressure line, etc.
You can get the factor navigation dash piece (Nissan - 68520), it usually runs 200-400 I believe and then just attach any screen to it. Friend in Houston uses a PC for his setup to tap into the car and display, and it uses dashcommand software on a windows OS.
Here is what an aftermarket HU with OEM nav dash piece will look like:
