So from the research I have done, I've discovered:

-It IS possible to do this conversion since my car came equipped with Nav, the wiring should be plug & play.

-The Chrono Pack to be installed must be brand new, as the odometer programming is permanent.

-The new configuration must be programmed by a dealer for everything to work properly.

So, since grabbing up a used Chrono Pack is out of the question, now I ask - WHERE can I buy one of these things? I'd really like to keep my car looking as OEM as possible, need a coolant temp gauge and the Nav is pretty useless these days anyway. Help me get this project started!

 

I may be talking out of my tailpipe, but I don't think the chrono is p-n-p for the oil pressure gauge. If you just want water temp, ScanGuage is a much simpler solution. And I don't think a new one would transfer the odo 1:1.
But hey, let us know if it works.

 

Add 3rd part guages....or buy a different car...
Simply put, I doubt the parts are still available as new zero mile parts... And folks that did conversions sometimes had issues...back in the day...like a decade ago, remember a person or two who posted the dealer did it for them, no guarantee it would work...

 

Any part (if it is available) can be purchased from the parts counter at the dealer. They would have to special order something like this.

http://realoem.com/bmw/showparts.do?...70&hg=62&fg=05

Part # 62109126997. Google it for online sources.
https://www.google.com/search?q=62109126997

 

Penske Parts indicates a Chrono Pack is available, although it also lists NA for several of them also. Might be a source for one.