OK, definately helps - also found a mistake I made upon embarking on this process. Apparently my shape that I had highlighted in my drawing isn't solid inside? When I went to extrude a shape onto it, I could then see inside the shape, leading me to believe that it is not a solid. Guess I have to go rework my shape to ensure it is a solid first and not a shell type object, then try overlaying a shape and extruding it.

I'll give it a few more tries and see what I can come up with.

Thanks again Michael.