I also have not found anything else from it. I have wondered though if that is actual donor. There are two other kits that stem from the same tool. I have one, the Gurney/Jorgensen Eagle which also has the part used on the G but is not identical to the Patric Eagle. So it's possible the Patrick Eagle doesn't donate to anything else because it was not the donor in the first place? Of course I've have not found anything else from the Gurney/Jorgenson either so... The original tool is the Bobby Unser Olsenite Eagle. I have that on the scan pile. Have not checked to see if it has the G part.
Please do a decent pics of it before you sell. Existing scans are mediocre. My kit is already broken up or I'd do it. If you want the Gurney/Jorgensen scans let me know.