Wow. Very nice install! Do you have any clearance issues between your WB02 sensor and bumper heat shield?
I'm doing a very similar install on my 930. I really like what you did with reusing a stock gauge housing!
Here's my second version of using a clock housing(sorry for the blurry pic). If I do another one I'll do what you did - use a fuel/oil level housing and keep the glass. Thanks for the idea!