The first step was to add a coat of the polymer to the print and the collage papers, then cut the papers and iron them on. It works beautifully. Then I dug out a cradle to mount the piece on, added a coat of gesso, some rice paper and after everything dried, a coat of the polymer varnish. Hooray, that worked as well.
It's not as messy as glue but not sure it will work with some of the things I add to my current 4x4 series. I am going to try it but those are on hold for a little while. The Holiday Show at the Gallery is coming up soon and I need to get more Wonky Angels finished for that.