Access CCK Fields on Content Type EntityFieldQuery()
EntityFieldQuerys are for querying entities, with the option to filter on their field values. They don't have the capacity to return any field data.

What you might be looking for is something like this, using field_get_items() and field_view_value()

...
$output = [];
$nodes = node_load_multiple($nids);
foreach ($nodes as $node) {
  // Get the field items
  $items = field_get_items('node', $node, 'field_rfqs_received');

  // Truncate to the necessary number (your logic will probably change here)
  foreach (array_slice($items, 0, 5) as $item) {
    // Add to the output array.
    $output[] = field_view_value('node', $node, 'field_rfqs_received', $item);
  }
}

print render($output);