Perhaps the title of this thread is misleading, or I wasn't clear in my opening post, but the original question asks whether a computer or graphic reconstruction of <i>only</i> the fallen stones at Stonehenge exists - not whether a full reconstruction (such as Foamhenge) should be attempted.
Should emphasise again that I don't think a partial restoration <i>should</i> be undertaken, just that it may be of interest to know what Stonehenge might look like if all existing stones <i>onsite</i> were back in their original positions.