You missed out on this one
http://www.volvoforums.org.uk/showthread.php?t=194582
and there was also this one but a late model 74
http://www.volvoforums.org.uk/showthread.php?t=189226
keep an eye on ebay they do come up but expect to be doing some welding. The common rot spots are, wheel well, wheel arches, sills (mainly the end by the wheel arch), the panel that the bonnet hinges are fixed to, front edge of inner wings and the front wings do also tend to rot out. The worst spot for repair is around the front windscreen