Jeff,

I took a look at your file.  WOW... what's with those crazy shapes made up of... even more crazy shapes? :~P

Before you do your cloning, you need to simplify the two shapes.  I've come up with 3 options that might suit your needs...

1)Simply redraw the outlines of your two shapes using a small number of nodes.

2)Export the two objects as images.  Import the images.  Run the Trace Bitmap feature.

3) Use the "Paint Bucket" feature on the existing objects.  I ran this option on your two objects and the results were pretty good.

One of these three options should work well for you.

- Tony