Will post some lug pics when I get home.
The lugs casings are 2-1/4" long by 1" wide. The lug holes are 1-1/2" apart.
As you'll see when I post the pics, I am a little surprised how good the condition of the inner spring is. May be stainless instead of straight steel.
Also, what might you recommend to reglue the edges of the finish? The 3M adhesive on the refinishing page seems to be intended for complete refinishing, not retacking.
Thanks again for all your help.