GONE-rallye oil pressure gauge NOS - 20 minutes left on ebay no bids yet $50.00

What's so rare about a rally oil pressure gage
Just that it was NOS and cheap till the end of the auction

I was thinking about taking one of the extra guages I now have and making a pressure gauge out of it. With the right sender ofcourse. A fuel gauge back with L and H to replace the E and F

take the top and middle off the E = L

Take the top off and add a right side to the F= H
It could be calibrated so I would know if it is between nothing and 20, 20 and 40, and greater than 40(:realcrazy: like that would happen without 50 or 60wt in the engine)