How high of a ramp do you need?

I've got a couple of those Williams Streamline Sight Ramps. They are N/O/S.
They are both .550" tall measured on my cheapo caliper.
That would be from the bbl surface to the top flat surface.

I think they are taller than what you have if the front curve of the base is any indication of heights.
You can have one if you can use it,I'll send it to you.
Let me know here.
Jim