I did find a similar gauge that Rochester makes. It is not exact but it is close. There is slight modification that I had to do in which I had to cut and file down smooth the plastic screw tabs. The gauge number is 5-1792. This website seems to have it. I don't know the validity of this website, but I believe they have it.
https://www.rrclllc.com/store/Rochester-5323S01792-JR-size-direct-read-dial-capsule-p315526097
I didn't remark the dial. I just mounted it off center. It's kinda tough to explain without a picture. The replacement dial doesn't have the markings like they would on the mooney ones. Instead they have E, 1/4, 1/2, 3/4, F. So I looked at the old dial on the other wing and realized that 22 gals indicates 1/2 full. I noticed 22 gals isn't exactly lined up with the middle like the new dial when it indicates half full. So I just glued the new dial and turned it to the right slightly