Catholic leaders confident they can raise $70m for Christchurch cathedral -The Press

" ... Diocese leaders said in October that engineering work had proved the whole cathedral could be restored for about $100m.

"We are going to propose to the new bishop that we restore the cathedral, possibly with some new lightweight materials in some places," Loughnan said."
http://www.stuff.co.nz/the-press/news/89970923/catholic-leaders-confident-they-can-raise-70m-for-christchurch-cathedral