Peter, thank you for the ideas. I figure this ramp is solid since I could use it as an operator on the wall with "Intersection".
Olivier's stuff seems to be all in French. Have you used any of it, and is it all in French? It's tricky enough setting settings for objects in my native English!
I haven't used Meshes much, and certainly not for a shape like this. I might look into it if all else fails, but a Wall would be better I think in order to join with some Walls it will meet.
-Doug