Thanks gents, it seemed a waste not to use them. I have an Assyrian cavalry unit with a front rank of Foundry and a back rank of Hinchliffe to do as well. A bit of cardboard under the base of the figures makes them look the same height.
Garry you should - might as well use them. The ADLG Neo-Assyrian and Babylonian lists are a bit strange, but nothing a bit of tweaking can't fix!