Maybe you could explain a bit more right now.
A body front spring ?
Like coil over conversion ?
I probably couldn't help you even with more information , but with a little less confusion , ya never know.
Edited to add.........it's becoming clearer I think.
I do have a set of 7/8ths offset perches that have the mounting bolts you could use for a template if this would help.
Or I could take some measurements.
This won't tell you where to put the holes on the car.........I could probably measure these on an early A for you , but it may be different for other cars.