Nice part you made there. makes your installation very neat. No need for an extension.

I used AutoMeter p/n: 2277 Electric Temperature or Pressure M12x1.5 male to 1/8" NPT female. About 12 dollars. You can order it at most Advance or NAPA stores.

14mm x 1.5mm to 1/4 NPT banjo. Good for transmission cooler mods.

Banjo Fitting

Let me see if I can find 12mm.