AEM wideband + boost gauge questions

Hello,

I just received my gauge pod from Ortiz and am putting in my AEM wideband and boost gauge and I have separate questions regarding them.

For the wideband, I would like to utilize the bung for the narrowband on the driver side and just cap my narrowband sensor. I have stock exhaust on it for the time being. Is that doable? I am not really inclined to weld in the new bung or adding in the clamp?

For the boost gauge, I have a t fitting that goes between my blow off valve to the vacuum fitting behind the throttle body. Is that T fitting an appropriate place to get my boost reading from?

For both of them and their power needs, I am looking at putting in an ?add-a-circuit ? on the spot where my NPP fuse used to be. Is that okay?

Thanks for the help and happy holidays!