Calling all original Console Tach Owners

I have an oem loaner 69 plate (thanks @killerslant) the holes look like they were done with dull tools. Thanks factory!

But they lineup really well with the OEM base and tach housing post and spring.

I did discover the top plates have a slight curve left to right. I thought they were flat!

Requiring a slight redesign of the base bottom.

My first metal prototype is on its way so I'll see if the curvature makes a difference.