[Spridgets] looking for seat bolt spacing '68-'69 Sprite

[Gerard Chateauvieux]

Can anyone provide me with an accurate measurement (center to center)  
of the hole spacing for the two seat rail bolt holes in the floorboard  
(front to back) of a '68 or '69 Spridget? Later cars of probably the  
same, but I'm not positive. I also need the distance from the frame  
crossmember to the first (front) hole. The left outside pair should be  
sufficient, as I believe they are all the same spacing.

Thanks

Gerard