Adding this script to a MaxDiff should cause the first row to be repeated between all other rows of the table:
<script>
$(document).ready(function(){
var headerTr = $('#[% QuestionName() %]_div .inner_table > tbody > tr:first-child');
$('#[% QuestionName() %]_div .body_row').slice(1).each(function(){
$(this).before(headerTr.clone());
});
})
</script>
Does that get you close to what you're after?